machine_question: what magazine did the subject of the film The Raven work for
question: For what magazines did the subject of the film "The Raven" work?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ?c)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ?c ns:film.film_subject.films ns:m.02vtrqx . 
  ?c ns:book.periodical_editor.periodicals_edited ?y .
  ?y ns:book.editorial_tenure.periodical ?x .
  }
  
webqsp_question: what magazine did edgar allan poe work for