How many {depicts} are for {Mona Lisa} ?
What number of representations exist of Mona Lisa?
How many depictions are there of the Mona Lisa?
SELECT ( COUNT ( ?g ) AS ?y ) { resource:Mona_Lisa property:depicts ?g }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q12418> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P180> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q12418 wdt:P180 ?obj }
7