SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/engine> <http://dbpedia.org/resource/V8_engine> . ?x <http://dbpedia.org/property/related> ?uri . }
How many cars can I find related to the cars which have a V8 engine?
SELECT DISTINCT COUNT ( ?u ) WHERE { ?o property:related ?u . . ?o property:engine resource:V8_engine }
291
There are [291] related cars with those that have a V8 engine.
There are [291] sister cars with V8 engines.