conversations.from: human
conversations.value: Randy had $3,000. Smith gave him another $200. Randy then gave Sally $1,200 and kept the rest. What was the value, in dollars, of the rest?
conversations.from: assistant
conversations.value: After Smith gave him $200, Randy had 3000+200=3200 dollars.
  The value of the rest of the money is 3200-1200=2000 dollars.