answer: #Person1# tells Ted about the writing competition next week, the topic of which is 'my ideal city'. Ted wants his ideal city to be a medium-sized green city. #Person1# also tells Ted about the prize.
documents: #Person1#: Hi, Ted. I have some good news for you.
  #Person2#: What is it?
  #Person1#: There will be a writing competition in our school next week. Since you are good at writing, you might be interested.
  #Person2#: What is the topic for this competition?
  #Person1#: My ideal city. You can write about a city that you want it to be.
  #Person2#: That's great. I've thought about this for a long time. I want my ideal city to be neither too big nor too small. I hope it's a green city.
  #Person1#: What do you mean by a green city? Do you want to plant a lot of trees in the city?
  #Person2#: Green here means environmentally friendly. I want people in the city to use clean energy.
  #Person1#: Now I see. Do you know what the prize for this year's competition is? You may not believe it.
  #Person2#: Is it a big sum of money?
  #Person1#: No, it's a two week holiday to some European countries.
  #Person2#: Oh, I prefer to go to Asia. I've traveled to Europe many times.