Setting: A strange industrial city with a lot of machines and smoke.
Conflict: The man found a robot-like 'lost thing' on the beach. He is trying to help the lost thing to go back to the place it used to be, but nobody in the society seen to care about it.
Climax: The man and the lost thing find the place full of lost things.
Symbols: The lost thing symbolizes imagination, creativity, and childhood.
Irony: The man gradually stops to find similar thing to the lost thing, then he never sees it again.
Theme: If you keep looking for something, it will appear in front of you. If not, you can never find it.