machine_question: who did darth vaders voice and a celebritie that had a romantic relationship that ended on 2010-12
question: Which celebrity did the darth vador voice and had a relationship that ended on 12/2010?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.0f2y0)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.0f2y0 ns:film.film_character.portrayed_in_films ?y .
  ?y ns:film.performance.actor ?x .
  ?y ns:film.performance.special_performance_type ns:m.02nsjvf .
  ?x ns:celebrities.celebrity.sexual_relationships ?c .
  ?c ns:celebrities.romantic_relationship.end_date "2010-12"^^xsd:dateTime . 
  }
webqsp_question: who did darth vaders voice