If one goat has its head down to the grass, while another goat is looking straight ahead.
return goats ;return head of #1 ;return the  grass ;return #1 where  #2 is down to  #3 ;return #1 that are looking straight ahead ;return number of  #4 ;return number of  #5 ;return if  #6 is equal to  one ;return if  #7 is equal to  one ;return if  both  #8 and #9 are true
['select', 'project', 'select', 'comparative', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']