machine_question: when did the celtics win championship and the sports championship results were 4 - 0
question: In which NBA championship did the Celtics win in a sweep of 4 games to 0.?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.0bwjj)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.0bwjj ns:sports.sports_team.championships ?x .
  ?x ns:sports.sports_championship_event.result "4 - 0"@en . 
  }
  
webqsp_question: when did the celtics win championship