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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it a horse?
a: No
q: are they on the trolley?
a: No
q: are they on the left?
a: No
q: is it a little kid?
a: No
q: is it the guy without he red bag?
a: Yes