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 had to appeal many sex-discrimination lawsuits.
( z1 obligate :ARG1 ( z2 company :name ( z3 name :op "Wal-Mart" ) ) :ARG2 ( z4 appeal :ARG0 z2 :ARG1 ( z5 sue :ARG2 ( z6 discriminate :ARG1 ( z7 sex ) ) :quant ( z8 many ) ) ) )