Objects in the image:
category: person
category: person
category: person
category: person
category: train
category: train

Guessing-game dialogue about one of the objects:
q: is it train?
a: Yes
q: is engine of train?
a: Yes
q: is it air?
a: No
q: is color is white?
a: Yes
q: is it glass?
a: No