Objects in the image:
category: bicycle
category: person
category: person
category: motorcycle
category: person
category: truck
category: bicycle
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the person waiving?
a: No
q: directly behind the person waiving?
a: No
q: on the bike on the other side of the road?
a: Yes