Did {Mary_of_Teck} {sibling} {Alexander Cambridge, 1st Earl of Athlone} and {Prince Francis of Teck} ?
Are Alexander Cambridge, 1st Earl of Athlone, Prince Francis of Teck and Mary of Teck related?
Is Mary of Teck siblings with Alexander Cambridge, the 1st Earl of Athlone, and Prince Francis of Teck?
ASK WHERE { resource:Mary_of_Teck property:sibling resource:Prince_Francis_of_Teck . resource:Mary_of_Teck property:sibling resource:Alexander_Cambridge,_1st_Earl_of_Athlone }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q76927> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3373> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q335091>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q76927> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3373> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q5641192>. } 
ASK WHERE { wd:Q76927 wdt:P3373 wd:Q335091 . wd:Q76927 wdt:P3373 wd:Q5641192 }