If there are 4 or more dogs, and one of them is being held up by a human.
return dogs ;return human ;return #1 being held up by #2 ;return number of  #1 ;return number of  #3 ;return if  #4 is at least 4 ;return if  #5 is equal to  one ;return if  both  #6 and #7 are true
['select', 'select', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']