ALL      and  and   jack      a all   makes
 WORK        dull play      and      boy
  AND   a   and      makes      dull     no
   NO  all      work     dull     a  all
 PLAY       no no work       dull     work
MAKES        play     work    play   play
 JACK    boy   makes    a   a    makes    jack
    A     and   a       dull       jack    no
 DULL        no  dull    jack      boy       a
  BOY      a    jack       boy  dull a     all