Virtuoso AWS AMI (PAGO) and GeoSPARQL support

So AWS AMI 8.2 has no GeoSPARQL support enabled.
I’m now on 8.3 and GeoSPARQL seems to be enabled.
Nevertheless when I run Query 1 from Virtuoso GeoSPARQL Demo Server I get zero objects: two are expected.
Can you please debug this?