How many {series} are to/by {Metroid} ?
What is the string number with Metroid}?
How many series are with Metroid} ?
SELECT ( COUNT ( ?w ) AS ?z ) { ?w property:part_of_the_series resource:Metroid }
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/P179> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q12397 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P179 wd:Q12397 }
14