If there are two hunters with two horned animals.
return hunters ;return animals ;return #2 that are horned ;return number of  #1 ;return number of  #3 ;return if  #4 is equal to  two  ;return if  #5 is equal to  two  ;return if  both  #6 and #7 are true
['select', 'select', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']