conversations.from: human
conversations.value: Can you explain how to solve this math problem: Charmaine will be 16 years old in 12 years. How old will she be 4 years from now?
conversations.from: assistant
conversations.value: Charmaine's present age is 16 - 12 = 4 years old.
  So she will be 4 + 4 = 8 years old 4 years from now.