If one of the dog's front paws are not on the grass.
return the  dog ;return front paws of #1 ;return the  grass ;return #2 on #3 ;return #2 besides  #4 ;return number of  #5 ;return if  #6 is equal to  one
['select', 'project', 'select', 'filter', 'discard', 'aggregate', 'boolean']