Objects in the image:
category: backpack
category: person
category: person
category: person
category: person
category: person
category: train

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it clothes?
a: No
q: Is it on the bus?
a: Yes
q: is it a backpack?
a: No
q: is it a window?
a: No
q: is it the door on the bus?
a: No
q: is it the metal grating on the left?
a: No
q: is it the curtains visible in the window?
a: No
q: Is it actually just the bus?
a: Yes