Is there a yellow object behind the large purple sphere?
return the  large purple sphere ;return objects ;return #2 that  are behind #1 ;return #2 that  are yellow ;return #2 in both #3 and #4 ;return number of  #5 ;return if  #6 is  at least one
['select', 'select', 'filter', 'filter', 'intersection', 'aggregate', 'boolean']