How many {winner} are to/by {Billie Jean King} ?
Now many awards were won by Billie Jean King
How many won by Billie Jean King?
SELECT ( COUNT ( ?c ) AS ?y ) { ?c property:winner resource:Billie_Jean_King }
SELECT (COUNT(?sub) AS ?subs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?sub .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1346> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q54527 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1346 wd:Q54527 }
33