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

Guessing-game dialogue about one of the objects:
q: a person?
a: No
q: motorcycle ??
a: No
q: something that is hazy?
a: No
q: backpack or something related to people carrying or wearing?
a: Yes
q: is it something one of the guys on the bike are holding/wearing?
a: No
q: the guy wearing the white tee, is he carrying something?
a: Yes
q: a backpack?
a: Yes