machine_question: what to do and see in vienna austria and is the exhibition venue that opened on 2009-10-20
question: What exhibit venue with an opening on 10/20/09 is a notable place to see and experience in Vienna, Austria?
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:exhibitions.exhibition_venue.exhibitions_at_this_venue ?c .
  ?c ns:exhibitions.exhibition_run.opened_on "2009-10-20"^^xsd:dateTime . 
  }
webqsp_question: what to do and see in vienna austria