How many {worshipped by} are to/by {religion in ancient Rome} ?
Ancient Rome worshiped what religion?
What religion is worshipped in ancient Rome?
SELECT ( COUNT ( ?l ) AS ?k ) { ?l property:worshipped_by resource:religion_in_ancient_Rome }
SELECT (COUNT(?sub) AS ?subs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?sub .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1049> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q337547 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1049 wd:Q337547 }
93