In this task, the input is a set of dialogues between a user and an assistant. You need to find the dialogue that is basically a response given to a question or an aspect of the user.

Let me give you an example: Hi. I want information about Namibia.
Nmbia is a country in southern Africa.
Do you have information about the media there?
What about it?
Interesting! What can you tell me about the politics and government?
The answer to this example can be: Nmbia is a country in southern Africa.
Here is why: This is a good example. The output is the response to the question asked by the user.

OK. solve this:
What about their etymology?
What can you tell me about their economy?
Can you tell me anything else?
Of course! Canada has the world's longest coastline. It touches 3 oceans, the Atlantic Ocean, Pacific Ocean, and Arctic Ocean. What subject are you interested in learning about?
Unfortunately there are no facts on their etymology for me at this time. I can provide another fact of their economy... Since the 1960's, Canada's aerospace industry has designed and built numerous marques of satellite, including Radarsat-1 and 2, ISIS and MOST.
Answer:
Of course! Canada has the world's longest coastline. It touches 3 oceans, the Atlantic Ocean, Pacific Ocean, and Arctic Ocean. What subject are you interested in learning about?