If the shelf in the image on the left is white, while the shelf on the right is darker.
return left image ;return shelf in  #1 ;return If #2 is  white ;return right image ;return shelf in  #4 ;return If #5 is  darker ;return If both  #3 and #6 are  true
['select', 'project', 'boolean', 'select', 'project', 'boolean', 'boolean']