Objects in the image:
category: person
category: backpack
category: person
category: bus
category: person

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: bus ??
a: No
q: sign ??
a: No
q: building ??
a: No
q: tree ??
a: No
q: something on the building?
a: No
q: something  in the street?
a: No
q: something white far away?
a: No
q: Is it the lamp?
a: No
q: the pits near the trees?
a: No
q: arrow ??
a: No
q: sky ??
a: No
q: green ??
a: No