Given the task definition and input, reply with output. In this task, you are given dialogue, and you have to find the most critical location in the given conversation.

What can you tell me about Puerto Rico today? 
 Puerto Rico is not a country. It is a territory of the US and its people are de facto citizens of the US as well; although, they cannot vote unless they also have an address in one of the 50 official US states. 
 That is interesting I always forget they are a US territory. Can you tell me about the Economy? 
 OK. The US dollar is the currency used. In 2017, Puerto Rico filed for bankruptcy due to its weak economy and massive debt. It is the largest bankruptcy case in US history. 
 Wow sounds like they have a lot of financial issues, can you tell me anything else about the economy? 
 The Jones Act stipulates that foreign ships with goods from Central and South America, Europe, and Africa cannot stop in Puerto Rico to offload or load goods and then continue on to the US. Puerto Rico is trying to fight the Jones Act. 
 That sounds like it would make things tough for them to import and export. Can you tell me about the demographics there? 
 Shortly after WWII, poverty, cheap airfares, and promotion by the Puerto Rican government caused many people to move to the US. There are more Puerto Rican descendant people in the US than in Puerto Rico. 
 That is kind of sad can you tell me anything else about the demographics? 
 I do not have more information other than emigration is a major part of Puerto Rican history. 
 Well thank you for all the information. 
 You are welcome.

Puerto Rico