How many {voice actor} are for {Futurama} ?
How many people voiced characters in Futurama?
How many voice actors participated in the Futurama} ?
SELECT ( COUNT ( ?g ) AS ?d ) { resource:Futurama property:voice_actor ?g }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q73622> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P725> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q73622 wdt:P725 ?obj }
55