what sports associations participated in the pwwa championship championship?
Entity
m.010xb7qk
Pro Wrestling Women's Alliance
class entity
sports.sports_league m.011110f7
sports.sports_league sports.sports_championship
Sports Association PWWA Championship
none none
sports.sports_league.championship
Championship
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :sports.sports_league . 
VALUES ?x1 { :m.011110f7 } 
?x0 :sports.sports_league.championship ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND sports.sports_league (JOIN sports.sports_league.championship m.011110f7))