conversations.from: human
conversations.value: Andrew bought 750 stickers. He shared some of his stickers with his friends, Daniel and Fred.  Daniel received 250 stickers, while Fred received 120 more stickers than Daniel.   He kept the remaining stickers. How many stickers did Andrew keep?
  Find the solution.
conversations.from: assistant
conversations.value: Fred received 250 + 120 = 370 stickers.
  Thus, Andrew shared 250 + 370 = 620 stickers.
  Therefore, Andrew kept 750 - 620 = 130 stickers.