Objects in the image:
category: traffic light
category: tie
category: bicycle
category: person
category: traffic light
category: bicycle
category: person
category: suitcase
category: person
category: person
category: backpack
category: suitcase
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: one of 2 on bicycle?
a: Yes
q: Is it the one in the front with the black bookbag?
a: Yes