machine_question: what year did the sports team arena stadium is AT&T Park win world series
question: When did the team that calls AT&T Park home win the world series?
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:sports.sports_team.arena_stadium ns:m.01_gsg . 
  ?c ns:sports.sports_team.championships ?x .
  }
  
webqsp_question: what year did giants win world series