Objects in the image:
category: horse
category: person
category: person
category: person
category: person
category: bus
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: motorcycle
category: person

Guessing-game dialogue about one of the objects:
q: person ??
a: Yes
q: in the bus ??
a: Yes
q: top deck I suppose?
a: Yes
q: front of the bus?
a: No
q: Is the person above the "M" in "Madrid"?
a: No
q: Is it letter D?
a: Yes
q: first D after A?
a: Yes
q: sitting at the edge and touching the window?
a: No
q: above R?
a: No
q: side of D?
a: Yes