How many {subsidiary} are for {European Union} ?
Tell me how many subsidiaries are in the E.U.
How many subsidiary are European Union?
SELECT ( COUNT ( ?p ) AS ?k ) { resource:European_Union property:subsidiary ?p }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q458> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P355> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q458 wdt:P355 ?obj }
4