What is {spin} of {subtopic of} of {proton decay} ?
What is the subtopic of the turn proton rot} ?
What is the subtopic of the spin proton decay} ?
SELECT ?e WHERE { resource:proton_decay property:facet_of ?n . ?n property:spin_quantum_number ?e }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1065997> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1269>. ?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/P1122> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q1065997 wdt:P1269 ?X . ?X wdt:P1122 ?answer}