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

Guessing-game dialogue about one of the objects:
q: is it the train?
a: No
q: a person?
a: No
q: above the train?
a: Yes
q: the undulated white roof?
a: No
q: brown ??
a: No
q: the scaffolding?
a: No
q: the roof of the train?
a: No
q: touching the roof of the train?
a: Yes
q: looks like an air vent or bell?
a: No
q: a clock on the right?
a: Yes