How many {input method} are for {Wii U} ?
What is the amount of input methods for the Wii U?
How many input methods are there for the Wii U?
SELECT ( COUNT ( ?k ) AS ?t ) { resource:Wii_U property:input_method ?k }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q56942> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P479> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q56942 wdt:P479 ?obj }
8