If all golf balls are sitting on tees in grassy areas.
return golf balls ;return tees ;return areas ;return #3 that are grassy ;return #2 in  #4 ;return #1 sitting on #5 ;return number of  #6 ;return number of  #1 ;return if  #7 is equal to  #8
['select', 'select', 'select', 'filter', 'filter', 'filter', 'aggregate', 'aggregate', 'boolean']