what are the name of the tournament champions that were ever defeated by jelena janković?
Entity Entity Entity Entity
m.02qzkdv m.0f4zsy m.02w7qc8 m.02q7lnf
Sorana Cîrstea Anastasia Pavlyuchenkova Olga Govortsova Sharon Fichman
class class entity
tennis.tennis_tournament_champion tennis.tennis_match m.06148c
tennis.tennis_tournament_champion tennis.tennis_match tennis.tennis_tournament_champion
Tennis Tournament Champion Tennis Match Jelena Janković
none none none
tennis.tennis_match.loser tennis.tennis_match.winner
Loser Winner
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 :tennis.tennis_tournament_champion . 
?x1 :type.object.type :tennis.tennis_match . 
VALUES ?x2 { :m.06148c } 
?x1 :tennis.tennis_match.loser ?x0 . 
?x1 :tennis.tennis_match.winner ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND tennis.tennis_tournament_champion (JOIN (R tennis.tennis_match.loser) (JOIN tennis.tennis_match.winner m.06148c)))