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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the train?
a: Yes
q: is it the yellow section on the train?
a: No
q: is it a bag?
a: No
q: is it part of the train?
a: Yes