If golf balls in the left image look noticeably darker and grayer than those in the right image.
return the  left image  ;return the  right image  ;return golf balls in  #1 ;return golf balls in  #2 ;return if  #3 are darker than #4 ;return if  #3 are grayer than #4 ;return if  both  #5 and #6 are true
['select', 'select', 'project', 'project', 'boolean', 'boolean', 'boolean']