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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: left side a single person between two trees?
a: No
q: next group between 2nd and 3rd tree?
a: No
q: 3rd and 4th tree?
a: No
q: is he behind the tree invisible?
a: No
q: rightmost person?
a: Yes