If an image shows a dog standing in front of a chair with only his hind legs on the floor.
return dog ;return chair ;return #1 standing in  front of #2 ;return hind legs of #3 ;return the  floor ;return #3 where  only #4 are on #5 ;return if  #6 is in  an image
['select', 'select', 'filter', 'project', 'select', 'comparative', 'boolean']