Objects in the image:
category: person
category: dog
category: bench
category: person
category: person
category: bicycle
category: person
category: person
category: bicycle
category: skateboard

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: dog  ??
a: No
q: is it a bike?
a: No
q: is it a skateboard?
a: No
q: bench  ??
a: Yes
q: is it behind the group of people?
a: No
q: is it to the left?
a: Yes
q: is someone sitting in it?
a: Yes