What is the {human} for {captain} of {F.C. Porto}
Who is the captain of F.C. Porto?
Who is the captain of F.C. Porto?
SELECT DISTINCT ?x WHERE { ?x rdf:type ontology:human . resource:Futebol_Clube_do_Porto property:captain ?x }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q128446> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P634> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?obj where { wd:Q128446 wdt:P634 ?obj . ?obj wdt:P31 wd:Q5 } 
Juan Fernando Quintero