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

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: near us??
a: Yes
q: wearing shorts ??
a: No
q: the guy in the black?
a: Yes