machine_question: where is washington d.c. at
question: In what region is Washington, D.C. located?
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_location.featured_in_films ns:m.02vqsll . 
  ?c ns:location.location.containedby ?x .
  ?x ns:common.topic.notable_types ns:m.01nt .
  }
  
webqsp_question: where is washington d.c. at