How many {represented by} are for {Sol LeWitt} ?
Who was Sol LeWitt represented by?
How many people represented the {Sol LeWitt} ?
SELECT ( COUNT ( ?y ) AS ?f ) { resource:Sol_LeWitt property:represented_by ?y }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q168587> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1875> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q168587 wdt:P1875 ?obj }
7