Objects in the image:
category: person
category: sports ball
category: person
category: person
category: person
category: tennis racket
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is the object a person?
a: Yes
q: is the person playing tennis?
a: No
q: is the person in the background?
a: Yes
q: is the person wearing purple?
a: No
q: is the person on the left side of the photo?
a: Yes
q: is the person wearing shorts?
a: Yes
q: are those shorts blue?
a: Yes