Objects in the image:
category: train
category: train
category: train
category: car
category: train
category: car
category: train
category: train
category: train
category: car
category: train
category: train
category: car
category: car
category: train

Guessing-game dialogue about one of the objects:
q: is it in left?
a: No
q: is it in front?
a: No
q: is it person?
a: No
q: is it train?
a: Yes
q: is it 1st from front?
a: No
q: is 2nd one?
a: No
q: is 3rd one?
a: No
q: is 4th one?
a: No
q: is 5th one?
a: No
q: is 6th  one?
a: No
q: i 7th one?
a: Yes
q: is 2nd blue?
a: No
q: is it red?
a: Yes
q: s it 1st red?
a: Yes