Objects in the image:
category: backpack
category: bicycle
category: bicycle
category: bicycle
category: handbag
category: person
category: person
category: bicycle
category: bicycle
category: bicycle
category: person
category: bicycle
category: bicycle
category: bicycle
category: dog
category: bicycle
category: bicycle
category: bus
category: bicycle

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: dog ??
a: No
q: bicycle ??
a: Yes
q: one being used?
a: No
q: is it at the back parked?
a: Yes
q: is it towards the right of the pick?
a: No
q: left ??
a: Yes
q: the green one just in front of us?
a: Yes