How many {creator} are for {Pokémon} ?
Pokemon has how many creators?
How many creators are with the Pokémon?
SELECT ( COUNT ( ?o ) AS ?g ) { resource:Pokémon property:creator ?o }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q239937> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P170> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q239937 wdt:P170 ?obj }
4