PLAY      ALL         PLAY
                    NO     BOY AND          BOY
                     NO          A     PLAY
                      NO   PLAY  NO          BOY

aLL wORK aND nO pLAY mAKES jACK a dULL bOY

                     MAKES        BOY NO
                NO       A    NO        JACK
                       AND       NO        NO
               ALL NO  NO       AND     ALL