conversations.from: human
conversations.value: Find a solution for this math problem: John visits three different countries.  He stays in the first country for 2 weeks and he spends twice as long in each of the other two countries.  How much time does he spend on the trip?
conversations.from: assistant
conversations.value: He spends 2*2=4 weeks in the other two countries
  So he spends 2*4=8 weeks in those countries combined
  That means he is gone for 2+8=10 weeks