Objects in the image:
category: backpack
category: person
category: backpack
category: person
category: cell phone
category: train
category: backpack
category: person
category: person
category: person
category: person
category: handbag
category: person
category: handbag
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is a bag?
a: Yes
q: Is it the bag on the man on the right?
a: No
q: on the back red color?
a: Yes