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.

Hello, can you tell me about Sao Tome Principe 
 The Sao Tome and Principe is the second-smallest African country, which is formed by two islands: Principe and Sao Tome. 
 What's the smallest African country? 
 I'm afraid I don't have that information at hand. But I do know that their tertiary institutions are the National Lyceum and the University of Sao Tome & Principe 
 Awesome, what can you tell me about their politics? 
 I can tell you that Sao Tome has functioned under a multiparty system since the year 1990. 
 Can you tell me more about that? 
 I believe that it has to do with the democratic reform, which took place in the year 1990, which changed it's constitution to the legalization of opposition parties, which now let to elections since the year 1991, that were now free, transparent, and nonviolent. 
 Ok cool, do you have any information on geography? 
 No, but I know that it recognized the People's Republic of China in the year 2016. 
 Great info! Do you have any other cool facts to share? 
 That about 193,380 people live in Sao Tome, and up to 8,420 people in Principe. 
 Thanks for all the info! Have a good one. :) 
 Same to you, have a nice day.

São Tomé and Príncipe