Did {Trojan_War} {participant} {Ophryneion} and {Achaeans} ?
Did Ophryneion and Achaeans participate in the Trojan War?
Were the Trojan War participants Ophryneion and Achaeans?
ASK WHERE { resource:Trojan_War property:participant resource:Ophryneion . resource:Trojan_War property:participant resource:Achaeans }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42937> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P710> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q7098068>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42937> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P710> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q191962>. } 
ASK WHERE { wd:Q42937 wdt:P710 wd:Q7098068 . wd:Q42937 wdt:P710 wd:Q191962 }