If all of the birds are in or near the water.
return birds ;return the  water ;return #1 in  #2 ;return #1 near #2 ;return #3 , #4 ;return number of  #5 ;return number of  #1 ;return if  #6 is equal to  #7
['select', 'select', 'filter', 'filter', 'union', 'aggregate', 'aggregate', 'boolean']