Objects in the image:
category: person
category: bench
category: person
category: person
category: person
category: train
category: person
category: person
category: train
category: handbag
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: is it person getting down from train?
a: No
q: is it black jacket person getting inside train with cover?
a: Yes