Did {Marco_Polo} {place of birth} {Venice}?
Is Venice Marco Polo's birthplace?
Was Marco Polo born in Venice?
ASK WHERE { resource:Marco_Polo property:place_of_birth resource:Venice }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q6101> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P19> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q641>. } 
ASK WHERE { wd:Q6101 wdt:P19 wd:Q641 }