Using Jena and/or RDF4J/Sesame to exploit Custom Reasoning & Inference Functionality in Virtuoso 8.x
Today’s enterprise and academic developers are very comfortable with Java and JDBC, which naturally leads them to Java-based frameworks such as Apache Jena™ (Jena™) and Eclipse RDF4J™ (RDF4J™, formerly OpenRDF Sesame™) when developing applications that leverage data represented as collections of RDF statements.
This post demonstrates use of the Reasoning & Inference capabilities of Virtuoso 8.x through both the Jena and RDF4J frameworks.
Virtuoso 8.x Reasoning & Inference
Among its many features, OpenLink Virtuoso™ is an RDF quad-store (sometimes treated as a triple-store), with powerful reasoning & inference functionality which can use built-in or custom inference rules, which may range from very simple to extremely complex.
Virtuoso offers high-performance data access and scalability that’s accessible to Java applications, services, and frameworks via JDBC connectivity.
Virtuoso also provides custom Java-based adapters (functioning as abstractions built atop its JDBC layer) for use with frameworks such as Jena and RDF4J. When working with these connectors, users may choose to exploit the built-in reasoning functionality provided by these frameworks, or to push the demands of that functionality from client-side (RDF4J, Jena, etc.) to the server-side (i.e., Virtuoso hosted).
Usage Examples
The examples that follow reuse data from prior posts about Virtuoso 8.0 reasoning and inference, i.e., a dataset that describes a sampling of relationship types across the British Royal Family. All inference in these examples is done by the Virtuoso server; no inference is done by the client-side frameworks.
Using Jena 3
Download the sample program zip file and extract to your directory of choice with the command unzip jena3_spin_example.zip .
$ unzip jena3_spin_example.zip
Archive: jena3_spin_example.zip
creating: jena3_spin_example/
extracting: jena3_spin_example/run.bat
creating: jena3_spin_example/src/
inflating: jena3_spin_example/gradlew
inflating: jena3_spin_example/readme.txt
creating: jena3_spin_example/gradle/
inflating: jena3_spin_example/settings.gradle
creating: jena3_spin_example/lib/
inflating: jena3_spin_example/spin_setup.sqlj
inflating: jena3_spin_example/build.gradle
inflating: jena3_spin_example/gradlew.bat
creating: jena3_spin_example/src/main/
creating: jena3_spin_example/src/main/java/
inflating: jena3_spin_example/src/main/java/Main.java
creating: jena3_spin_example/gradle/wrapper/
inflating: jena3_spin_example/gradle/wrapper/gradle-wrapper.properties
inflating: jena3_spin_example/gradle/wrapper/gradle-wrapper.jar
inflating: jena3_spin_example/lib/virtjdbc4_2.jar
inflating: jena3_spin_example/lib/virt_jena3.jar
$
The sample program uses the open source Gradle build automation tools to compile and run the sample program, as detailed in the included readme.txt file:
1) Use this command to compile the sample program:
gradlew clean build
2) Use this command to run the sample program:
gradlew run
**NOTE 1**
The example connects to a Virtuoso instance on
localhost port 1111, with userid and password
both "dba". To connect to a different Virtuoso
server instance or use different credentials,
you will need to edit the file "build.gradle",
and change the args ['{hostname or IP address}',
'{port number}', '{username}', '{password}'] to
suit your target instance.
...
run {
args = ['localhost', '1111', 'dba', 'dba']
}
...
**NOTE 2**
Most of the demo's requirements are contained in
the zip file. gradle will automatically download
any missing dependencies when the demo is run for
the first time, so you’ll need an active internet
connection at that time.
The output of building and running the sample program is shown below:
$ sh gradlew clean build
:clean UP-TO-DATE
:compileJava
:processResources UP-TO-DATE
:classes
:jar
:startScripts
:distTar
:distZip
:assemble
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build
BUILD SUCCESSFUL
Total time: 3.017 secs
$ sh gradlew run
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:run
Start loadind data to DB
End loadind data to DB
===========[Query1]==========
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT *
WHERE { ?s a <#RoyalPerson> . }
-----------------------------
------------------------------------------------------------------------------------------------------------------
| s | graph |
==================================================================================================================
| <http://dbpedia.org/resource/Prince_William_of_Wales> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Prince_Harry_of_Wales> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_Bowes-Lyon> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Charles,_Prince_of_Wales> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Anne,_Princess_Royal> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Peter_Phillips> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Zara_Phillips> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Princess_Beatrice_of_York> | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Princess_Eugenie_of_York> | <urn:spin:nanotation:demo:royal:family> |
------------------------------------------------------------------------------------------------------------------
============================
.
.
.
===========[Query13]==========
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT DISTINCT *
WHERE {
{ ?parent a <#RoyalPerson> ; rel:parentOf ?parentOf .}
UNION
{ ?person a foaf:Person; <#hasAuntie> ?hasAuntie .}
UNION
{ ?person a foaf:Person; <#hasUncle> ?hasUncle .}
UNION
{ ?person a foaf:Person; <#hasCousin> ?hasCousin .}
UNION
{ ?person a foaf:Person; <#hasUncle2> ?hasUncle2 .}
UNION
{ ?person a foaf:Person; <#hasCousin2> ?hasCousin2 .}
UNION
{ ?person a foaf:Person; rel:siblingOf ?hasSibling . }
UNION
{ ?person a foaf:Person; rel:ancestorOf ?hasDescendant . }
}
-----------------------------
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| parent | parentOf | person | hasAuntie | hasUncle | hasCousin | hasUncle2 | hasCousin2 | hasSibling | hasDescendant | graph |
=======================================================================================================================================================================================================================================================================================================================================================================================================
| <http://dbpedia.org/resource/Elizabeth_Bowes-Lyon> | <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | <http://dbpedia.org/resource/Charles,_Prince_of_Wales> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | <http://dbpedia.org/resource/Anne,_Princess_Royal> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | <http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | <http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Charles,_Prince_of_Wales> | <http://dbpedia.org/resource/Prince_William_of_Wales> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Charles,_Prince_of_Wales> | <http://dbpedia.org/resource/Prince_Harry_of_Wales> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Anne,_Princess_Royal> | <http://dbpedia.org/resource/Peter_Phillips> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Anne,_Princess_Royal> | <http://dbpedia.org/resource/Zara_Phillips> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York> | <http://dbpedia.org/resource/Princess_Beatrice_of_York> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| <http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York> | <http://dbpedia.org/resource/Princess_Eugenie_of_York> | | | | | | | | | <urn:spin:nanotation:demo:royal:family> |
| | | <http://dbpedia.org/resource/Prince_William_of_Wales> | | | | | | <http://dbpedia.org/resource/Prince_Harry_of_Wales> | | <urn:spin:nanotation:demo:royal:family> |
| | | <http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom> | | | | | | <http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon> | | <urn:spin:nanotation:demo:royal:family> |
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
============================
BUILD SUCCESSFUL
Total time: 1.977 secs
$
Using RDF4J
Download the sample program zip file and extract to your directory of choice with the command unzip rdf4j_spin_sample.zip .
$ unzip rdf4j_spin_sample.zip
Archive: rdf4j_spin_sample.zip
creating: rdf4j_spin_sample/
creating: rdf4j_spin_sample/.gradle/
creating: rdf4j_spin_sample/.gradle/3.2.1/
creating: rdf4j_spin_sample/.gradle/3.2.1/taskArtifacts/
inflating: rdf4j_spin_sample/.gradle/3.2.1/taskArtifacts/fileHashes.bin
inflating: rdf4j_spin_sample/.gradle/3.2.1/taskArtifacts/fileSnapshots.bin
inflating: rdf4j_spin_sample/.gradle/3.2.1/taskArtifacts/taskArtifacts.bin
inflating: rdf4j_spin_sample/.gradle/3.2.1/taskArtifacts/taskArtifacts.lock
inflating: rdf4j_spin_sample/build.gradle
creating: rdf4j_spin_sample/gradle/
creating: rdf4j_spin_sample/gradle/wrapper/
inflating: rdf4j_spin_sample/gradle/wrapper/gradle-wrapper.jar
inflating: rdf4j_spin_sample/gradle/wrapper/gradle-wrapper.properties
inflating: rdf4j_spin_sample/gradlew
inflating: rdf4j_spin_sample/gradlew.bat
creating: rdf4j_spin_sample/lib/
inflating: rdf4j_spin_sample/lib/virt_rdf4j.jar
inflating: rdf4j_spin_sample/lib/virtjdbc4_2.jar
inflating: rdf4j_spin_sample/readme.txt
inflating: rdf4j_spin_sample/settings.gradle
inflating: rdf4j_spin_sample/spin_setup.sqlj
creating: rdf4j_spin_sample/src/
creating: rdf4j_spin_sample/src/main/
creating: rdf4j_spin_sample/src/main/java/
inflating: rdf4j_spin_sample/src/main/java/Main.java
$
The sample program uses the open source Gradle build automation tools to compile and run the sample program, as detailed in the included readme.txt file:
1) Use this command to compile the sample program:
gradlew clean build
2) Use this command to run the sample program:
gradlew run
**NOTE 1**
The example connects to a Virtuoso instance on
localhost port 1111, with userid and password
both "dba". To connect to a different Virtuoso
server instance or use different credentials,
you will need to edit the file "build.gradle",
and change the args ['{hostname or IP address}',
'{port number}', '{username}', '{password}'] to
suit your target instance.
...
run {
args = ['localhost', '1111', 'dba', 'dba']
}
...
**NOTE 2**
Most of the demo's requirements are contained in
the zip file. gradle will automatically download
any missing dependencies when the demo is run for
the first time, so you’ll need an active internet
connection at that time.
The output of building and running the sample program is shown below:
$ sh gradlew clean build
Starting a Gradle Daemon (subsequent builds will be faster)
:clean UP-TO-DATE
:compileJava
:processResources UP-TO-DATE
:classes
:jar
:startScripts
:distTar
:distZip
:assemble
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:check UP-TO-DATE
:build
BUILD SUCCESSFUL
Total time: 6.475 secs
$ sh gradlew run
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:run
Start loading data to DB
End loading data to DB
======== Query1 Exec:=========
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT *
WHERE { ?s a <#RoyalPerson> . }
-----------------------------
s |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |
http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Princess_Eugenie_of_York |
Rows =13
-----------------------------
Query2 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT *
WHERE { ?s a ?t . }
-----------------------------
s |t |
--------------------------------------------------------------------
:#hasRelative |http://www.w3.org/1999/02/22-rdf-syntax-ns#Property |
:#hasUncle |http://www.w3.org/1999/02/22-rdf-syntax-ns#Property |
:#hasAuntie |http://www.w3.org/1999/02/22-rdf-syntax-ns#Property |
:#hasCousin |http://www.w3.org/1999/02/22-rdf-syntax-ns#Property |
http://dbpedia.org/resource/Prince_William_of_Wales |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Prince_William_of_Wales |:#MalePerson |
http://dbpedia.org/resource/Prince_William_of_Wales |:#RoyalPerson |
http://dbpedia.org/resource/Prince_Harry_of_Wales |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#MalePerson |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#RoyalPerson |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |:#FemalePerson |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |:#RoyalPerson |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |:#FemalePerson |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |:#RoyalPerson |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |:#MalePerson |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |:#RoyalPerson |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Anne,_Princess_Royal |:#FemalePerson |
http://dbpedia.org/resource/Anne,_Princess_Royal |:#RoyalPerson |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |:#MalePerson |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |:#RoyalPerson |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |:#MalePerson |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |:#RoyalPerson |
http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |:#FemalePerson |
http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |:#RoyalPerson |
http://dbpedia.org/resource/Peter_Phillips |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Peter_Phillips |:#MalePerson |
http://dbpedia.org/resource/Peter_Phillips |:#RoyalPerson |
http://dbpedia.org/resource/Zara_Phillips |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Zara_Phillips |:#FemalePerson |
http://dbpedia.org/resource/Zara_Phillips |:#RoyalPerson |
http://dbpedia.org/resource/Princess_Beatrice_of_York |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#FemalePerson |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#RoyalPerson |
http://dbpedia.org/resource/Princess_Eugenie_of_York |http://xmlns.com/foaf/0.1/Person |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#FemalePerson |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#RoyalPerson |
Rows =43
-----------------------------
Query3 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT *
WHERE { ?s a <#RoyalPerson> ; rel:siblingOf ?sibling .
}
-----------------------------
s |sibling |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Prince_William_of_Wales |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Peter_Phillips |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Princess_Eugenie_of_York |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Princess_Beatrice_of_York |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |
Rows =20
-----------------------------
Query4 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT *
WHERE { ?s a <#RoyalPerson> ; rel:grandParent ?gp .
}
-----------------------------
s |parent_urn_spin_nanotation_demo_royal_family_lib2_bnode_a_6 |gp |
--------------------------------------------------------------------
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Eugenie_of_York |
Rows =10
-----------------------------
Query5 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person rel:ancestorOf as ?relation ?descendant
WHERE { ?person a <#RoyalPerson> ;
rel:ancestorOf ?descendant .
}
-----------------------------
person |relation |descendant |
--------------------------------------------------------------------
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://purl.org/vocab/relationship/ancestorOf |http://dbpedia.org/resource/Princess_Beatrice_of_York |
Rows =27
-----------------------------
Query6 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT DISTINCT ?person rel:siblingOf as ?relation ?siblingOf
WHERE { ?person a <#RoyalPerson> ;
rel:siblingOf ?siblingOf
}
-----------------------------
person |relation |siblingOf |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Prince_William_of_Wales |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Peter_Phillips |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Princess_Eugenie_of_York |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Princess_Beatrice_of_York |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://purl.org/vocab/relationship/siblingOf |http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |
Rows =19
-----------------------------
Query7 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person <#hasAuntie> as ?relation ?hasAuntie
WHERE { ?person a <#RoyalPerson> ;
<#hasAuntie> ?hasAuntie
}
-----------------------------
person |relation |hasAuntie |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasAuntie |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasAuntie |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasAuntie |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasAuntie |http://dbpedia.org/resource/Anne,_Princess_Royal |
Rows =4
-----------------------------
Query8 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person <#hasUncle> as ?relation ?hasUncle
WHERE { ?person a <#RoyalPerson> ;
<#hasUncle> ?hasUncle
}
-----------------------------
person |relation |hasUncle |
--------------------------------------------------------------------
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
Rows =28
-----------------------------
Query9 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person <#hasUncle2> as ?relation ?hasUncle2
WHERE { ?person a <#RoyalPerson> ;
<#hasUncle2> ?hasUncle2
}
-----------------------------
person |relation |hasUncle2 |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasUncle2 |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle2 |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasUncle2 |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasUncle2 |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle2 |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasUncle2 |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
Rows =14
-----------------------------
Query10 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person <#hasCousin> as ?relation ?hasCousin
WHERE { ?person a <#RoyalPerson> ;
<#hasCousin> ?hasCousin
}
-----------------------------
person |relation |hasCousin |
--------------------------------------------------------------------
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
Rows =28
-----------------------------
Query11 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?person <#hasCousin2> as ?relation ?hasCousin2
WHERE { ?person a <#RoyalPerson> ;
<#hasCousin2> ?hasCousin2
}
-----------------------------
person |relation |hasCousin2 |
--------------------------------------------------------------------
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Prince_Harry_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Prince_William_of_Wales |:#hasCousin2 |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Peter_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Zara_Phillips |:#hasCousin2 |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin2 |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin2 |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin2 |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin2 |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin2 |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin2 |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Princess_Beatrice_of_York |:#hasCousin2 |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Princess_Eugenie_of_York |:#hasCousin2 |http://dbpedia.org/resource/Peter_Phillips |
Rows =24
-----------------------------
Query12 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT ?s as ?ancestor
?descendant
WHERE { ?s a <#RoyalPerson> ;
rel:ancestorOf ?descendant
}
-----------------------------
ancestor |descendant |
--------------------------------------------------------------------------------------------------------------------------------
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Anne,_Princess_Royal |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Charles,_Prince_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Princess_Beatrice_of_York |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_Harry_of_Wales |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_William_of_Wales |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Zara_Phillips |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Peter_Phillips |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Eugenie_of_York |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Beatrice_of_York |
Rows =27
-----------------------------
Query13 Exec:
PREFIX rel: <http://purl.org/vocab/relationship/>
WITH <urn:spin:nanotation:demo:royal:family>
SELECT DISTINCT *
WHERE {
{ ?parent a <#RoyalPerson> ; rel:parentOf ?parentOf .}
UNION
{ ?person a foaf:Person; <#hasAuntie> ?hasAuntie .}
UNION
{ ?person a foaf:Person; <#hasUncle> ?hasUncle .}
UNION
{ ?person a foaf:Person; <#hasCousin> ?hasCousin .}
UNION
{ ?person a foaf:Person; <#hasUncle2> ?hasUncle2 .}
UNION
{ ?person a foaf:Person; <#hasCousin2> ?hasCousin2 .}
UNION
{ ?person a foaf:Person; rel:siblingOf ?hasSibling . }
UNION
{ ?person a foaf:Person; rel:ancestorOf ?hasDescendant . }
}
-----------------------------
parent |parentOf |person |hasAuntie |hasUncle |hasCousin |hasUncle2 |hasCousin2 |hasSibling |hasDescendant |
--------------------------------------------------------------------
http://dbpedia.org/resource/Elizabeth_Bowes-Lyon |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Charles,_Prince_of_Wales |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Prince_Edward,_Earl_of_Wessex |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |http://dbpedia.org/resource/Anne,_Princess_Royal |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_William_of_Wales |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Charles,_Prince_of_Wales |http://dbpedia.org/resource/Prince_Harry_of_Wales |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Peter_Phillips |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Anne,_Princess_Royal |http://dbpedia.org/resource/Zara_Phillips |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Beatrice_of_York |null |null |null |null |null |null |null |null |
http://dbpedia.org/resource/Prince_Andrew,_Duke_of_York |http://dbpedia.org/resource/Princess_Eugenie_of_York |null |null |null |null |null |null |null |null |
null |null |http://dbpedia.org/resource/Prince_William_of_Wales |null |null |null |null |null |http://dbpedia.org/resource/Prince_Harry_of_Wales |null |
null |null |http://dbpedia.org/resource/Elizabeth_II_of_the_United_Kingdom |null |null |null |null |null |http://dbpedia.org/resource/Princess_Margaret,_Countess_of_Snowdon |null |
Rows =13
-----------------------------
BUILD SUCCESSFUL
Total time: 1.415 secs
$
Conclusion
As demonstrated in this post, a Java developer can take full advantage of frameworks such as Jena and RDF4J while using Virtuoso as the backend RDBMS or Quad Store. The fact that Virtuoso was written in ‘C’ is a powerful virtue that’s exploitable via Java application developers without any impedance regarding preferences and best practices.
Driver/Provider Downloads
- About the OpenLink Virtuoso™ Provider for RDF4J™ Version 2.1.4
- OpenLink Virtuoso ™ Provider for RDF4J™ Version 2.1.4 JAR file
- About the OpenLink Virtuoso™ Provider for Jena™ Version 2.7.2
- OpenLink Virtuoso™ Provider for Jena™ Version 2.7.2 JAR file
- About the OpenLink Virtuoso™ Providers for all releases of Jena™ and RDF4J™/Sesame™
Related
- Creating Custom Inference Rules using the SPIN Vocabulary and Virtuoso 8.0
- Custom Reasoning & Inference Using British Royal Family Relationships
- SQL Script for creating SPIN-based Custom Inference Rules using British Royal Family Relationships
- SQL Script for testing Custom Inferences Rules for British Royal Family Relationship — SPARQL Queries that leverage SPIN-based Custom Inference Rules
- A Semantic Web & Artificial Intelligence
- SPIN Vocabulary
- Using Custom Inference Rules to dynamically generate Linked Data from Open Data