conversations.from: human
conversations.value: Find the answer to this math problem: In four years, Annika will be three times as old as Hans. If Hans is now 8 years old, how old is Annika now?
conversations.from: assistant
conversations.value: In four years, Hans will be 8+4=12 years old.
  Then Annika will be 12*3=36 years old.
  So Annika right now is 36-4=32 years old.