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 often faces lawsuits.
( z1 face :ARG0 ( z2 company :name ( z3 name :op "Wal-Mart" ) ) :ARG1 ( z4 sue ) :frequency ( z5 often ) )