If one image shows a puppy and the other shows an adult dog.
return one image ;return dog in  #1 ;return if  #2 is a  puppy ;return the  other image ;return dog in  #4 ;return if  #5 is an adult ;return if  both  #3 and #6 are true
['select', 'project', 'boolean', 'select', 'project', 'boolean', 'boolean']