How many {home venue} are to/by {Estádio do Maracanã} ?
Is the venue Estadio do Maracana a home venue?
Is Estadio do Maracana a home venue?
SELECT ( COUNT ( ?v ) AS ?i ) { ?v property:home_venue resource:Maracanã_Stadium }
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/P115> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q155174 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P115 wd:Q155174 }
3