conversations.from: human
conversations.value: Annie walked 5 blocks from her house to the bus stop. She rode the bus 7 blocks to the coffee shop. Later, she came home the same way. How many blocks did Annie travel in all?
conversations.from: assistant
conversations.value: Annie traveled 5 + 7 = 12 blocks to the coffee shop.
  Her round trip would take 12 x 2 = 24 blocks.