What is {item used} of {doctoral supervisor} of {Malcolm Perry} ?
What item did Malcolm Perry's supervisor use?
What was the item used by Malcolm Perry's doctoral supervisor?
SELECT ?p WHERE { ?b property:uses ?p . resource:Malcolm_Perry property:doctoral_advisor ?b }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q6742553> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P184>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2283> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q6742553 wdt:P184 ?X . ?X wdt:P2283 ?answer}
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