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

Guessing-game dialogue about one of the objects:
q: a bus ??
a: No
q: person in the bus ??
a: Yes
q: driver ??
a: No
q: on top ??
a: Yes
q: left one ??
a: No
q: 2nd from left ??
a: Yes