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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Are they on the platform in the bottom right?
a: Yes
q: Are they to the right of the support beam for the walkway?
a: No
q: Are they to the left of that support beam?
a: Yes
q: Are they wearing white?
a: No
q: Are they wearing black, and red?
a: No
q: Are they wearing blue, and have a backpack on?
a: Yes