machine_question: where was the artist which recorded Cheers (Drink to That) born
question: In which city, was the artist that recorded,Cheers (Drink to That), born at?
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:music.featured_artist.recordings ns:m.0zqvb8l . 
  ?c ns:people.person.place_of_birth ?x .
  }
  
webqsp_question: where was avril lavigne born