answer: A son thinks his mother asked a stupid question because he has grown up, but it turns out he is still a naive child.
documents: #Person1#: Honey, do you know what color the carrot is? 
  #Person2#: Mom, it's orange? 
  #Person1#: Wow, my son is so clever. 
  #Person2#: Mom, that's a stupid question. 
  #Person1#: Really? 
  #Person2#: I am not a child at all. I know more. 
  #Person1#: Oh, my son looks like a grown-up. 
  #Person2#: Sure. Mom, I can take care of you. 
  #Person1#: No kidding. So tell me what's your favorite color? 
  #Person2#: I like blue. You see, that's the color of the sky. I wanna be a superman. 
  #Person1#: Why? 
  #Person2#: I hope I can fly to any place like superman. So I can touch the sky. 
  #Person1#: OK, superman. Put on your cape, we are going to fly home.