Objects in the image:
category: bench
category: umbrella
category: bench
category: bench

Guessing-game dialogue about one of the objects:
q: is it one of the benches?
a: No
q: is it made of concrete?
a: No
q: is it one of the trees?
a: No
q: Is it the fence?
a: No
q: Is it one of the cranes?
a: No
q: Is it green?
a: No
q: Is it red?
a: No
q: is it blue?
a: Yes
q: Is it one of the windows?
a: No