Objects in the image:
category: umbrella
category: surfboard
category: person
category: person
category: surfboard
category: person
category: person
category: person
category: person
category: person
category: person
category: umbrella
category: person
category: person
category: surfboard

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Are they standing on the blue surf machine?
a: No
q: Are they waiting in line?
a: Yes
q: Are they near the middle/back of the line?
a: No
q: Is it the person on the front holding the surfboard?
a: No
q: Is it the person behind that?
a: Yes