machine_question: what to do and see in vienna austria and the number of building floors is 50
question: What building in Vienna, Austria has 50 floors?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.0fhp9)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.0fhp9 ns:travel.travel_destination.tourist_attractions ?x .
  ?x ns:architecture.building.floors "50" . 
  }
webqsp_question: what to do and see in vienna austria