Does the {specific rotation} of the {dolabriferol B} {equals} {-51.9}
Is -51.9 the specific rotation of the dolabriferol B?
ASK WHERE { wd:Q57421096 wdt:P6272 ?obj filter(?obj = -51.9) } 
ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q57421096> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P6272>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj. filter(?obj = -51.9) }
Is dolabriferol B's specific rotation -51.9?