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

Guessing-game dialogue about one of the objects:
q: person / ?
a: Yes
q: closest to us?
a: No
q: next one, by blue sign?
a: No
q: touching the train?
a: No
q: left half of group?
a: No
q: right half of group?
a: Yes
q: reflection on train?
a: No
q: middle of group?
a: Yes