If there are two whole lemons and three lemon halves.
return lemons ;return lemon halves ;return #1 that are whole ;return number of  #3 ;return number of  #2 ;return if  #4 is equal to  two ;return if  #5 is equal to  three ;return if  both  #6 and #7 are true
['select', 'select', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']