conversations.from: human
conversations.value: Break down this math problem: There are 26 countries in South America and, in each country, there are 5 cities with 1000 people living in each city.  If the whole population lives in these cities, how many people are there in South America?
conversations.from: assistant
conversations.value: Since each country has 5 cities, then in all the 26 countries, there are 26*5 = 130 cities.
  If each city has 1000 people, then the 130 cities have 130*1000 = 130000