conversations.from: human
conversations.value: Lucas went to the store with $20 and needed to buy 3 avocados that cost $2 each. How much change does he bring home?
  Solve this problem.
conversations.from: assistant
conversations.value: The avocados cost 6 because 3 x 2 = 6
  He brings home $4 in change because 20 - 6 =14