What is the {Star Trek episode} for {characters} of {Stephen Hawking}
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Stephen Hawking was a character of which Star Trek episode ?
SELECT DISTINCT ?f WHERE { ?f rdf:type ontology:Star_Trek_episode . ?f property:characters resource:Stephen_Hawking }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P674> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q17714> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q61220733> } 
 select distinct ?sbj where { ?sbj wdt:P674 wd:Q17714 . ?sbj wdt:P31 wd:Q61220733 } 
Descent Descent, Part I