in the 2007 world championships what countries participated?
Entity Entity Entity
m.03rjj m.09c7w0 m.03_r3
Italy United States of America Jamaica
class entity
sports.sport_country m.09hz7b
sports.sport_country sports.multi_event_tournament
Sport Country 2007 world championships
none none
sports.sport_country.multi_event_tournaments_participated_in
Multi-event tournaments participated in
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.sport_country . 
VALUES ?x1 { :m.09hz7b } 
?x0 :sports.sport_country.multi_event_tournaments_participated_in ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND sports.sport_country (JOIN sports.sport_country.multi_event_tournaments_participated_in m.09hz7b))