Definition: 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.
Input: In the 13th century, the Hanseatic League started to control the majority of the trading through outposts of the North Sea. 
 How important was North Sea back then? 
 Thanks for the interesting information. That's all I need to know. 
 I see. Can you tell me something about its names? 
 HI can you tell me some fact about North Sea?
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
In the 13th century, the Hanseatic League started to control the majority of the trading through outposts of the North Sea.