How many {director} are for {The Wizard of Oz} ?
How many director are for The Wizard of Oz?
SELECT (COUNT(?obj) AS ?value ) { wd:Q193695 wdt:P57 ?obj }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q193695> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P57> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

How many people directed The Wizard of Oz?