Objects in the image:
category: person
category: clock
category: backpack
category: person
category: person
category: person
category: person
category: person
category: handbag
category: person
category: dog
category: traffic light
category: train
category: person
category: person
category: person
category: bench

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it the train?
a: No
q: Is it the blue structure to the right?
a: No
q: Is it to the left?
a: No
q: Is it to the right?
a: No
q: Is it the track?
a: No
q: Is it the signal?
a: Yes
q: Is it the one at the back, near the train?
a: Yes