Wal-Mart Stores has asked a US federal appeals court to review a judge's order approving class-action status for a sex-discrimination lawsuit.
Wal-Mart has been accused of sex discrimination.
( z1 accuse :ARG1 ( z2 company :name ( z3 name :op "Wal-Mart" ) ) :ARG2 ( z4 discriminate :ARG0 z2 :ARG1 ( z5 sex ) ) )