machine_question: what year did the the team won the 2013 AFC Championship Game championship win superbowl
question: In what year did a team win the superbowl and the 2013 AFC Championship Game ?
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.championships ns:m.0_gtz8t . 
  ?c ns:sports.sports_team.championships ?x .
  ?x ns:sports.sports_championship_event.championship ns:m.06x5s .
  }
  
webqsp_question: what year did the baltimore ravens win superbowl