Objects in the image:
category: tennis racket
category: person
category: chair
category: person
category: person
category: chair
category: person
category: person
category: person
category: chair
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a tennis racquet?
a: No
q: is it clothes?
a: No
q: is it the net?
a: No
q: is it the green fence?
a: No
q: is it a gate?
a: No
q: is it the ground?
a: No
q: is it a chair?
a: Yes
q: is it one of the chairs on the first row?
a: No
q: is it the chair next to the lady with red shorts?
a: Yes