PLAY          MAKES    BOY
                PLAY         AND   JACK       WORK
                        JACK      MAKES      ALL
                      BOY      NO         MAKES
                 JACK         NO          AND
                  DULL         JACK         MAKES
                     WORK    JACK         NO
                 JACK       MAKES   WORK
                        AND A  DULL  NO        DULL

aLL wORK aND nO pLAY mAKES jACK a dULL bOY

               NO        ALL          A    BOY
                       PLAY         WORK
                       NO  WORK A   WORK