machine_question: who played that who was born in Hill Valley 's dad
question: Who played the part that was born in Hill Valley's dad?
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:fictional_universe.fictional_character.place_of_birth ns:m.01_jv_ . 
  ?c ns:fictional_universe.fictional_character.parents ?x .
  ?x ns:fictional_universe.fictional_character.gender ns:m.05zppz .
  }
  
webqsp_question: who played marty mcfly 's dad