If there are two canopies with at least one that is purple.
return canopies ;return #1 that are purple ;return number of  #1 ;return number of  #2 ;return if  #3 is equal to  two ;return if  #4 is at least one ;return if  both  #5 and #6 are true
['select', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']