If at least one image features a bunch of purple grapes on the vine.
return bunch of grapes ;return #1 that are purple ;return vine ;return #2 that are on #3 ;return images of #4 ;return the  number of  #5 ;return if  #6 is at least one
['select', 'filter', 'select', 'filter', 'project', 'aggregate', 'boolean']