Did {Fentanyl} {subject has role} {narcotic}?
Is Fentanyl responsible for the narcotic problem?
ASK WHERE { wd:Q407541 wdt:P2868 wd:Q940 }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q407541> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2868> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q940>. } 
Does Fentanyl have responsibility in the narcotic problem?