    Sentence 1: Wal-Mart, Kohl 's Corp. ,  Family Dollar Stores inc ., and Big Lots  linc. were among the merchants posting  May sales that fell below Wall Street 's  modest expectations .    Sentence 2: Wal- Mart , Kohl's Corp. ,  Family Dollar Stores inc ., and Big Lots  linc. posted May. sales that fell below Wall  Street 's modest expectations .