conversations.from: human
conversations.value: Emily has 7 times as many oranges as Sandra. Sandra has 3 times as many oranges as Betty. If Betty has 12 oranges, how many oranges does Emily have?
  Solve it.
conversations.from: assistant
conversations.value: Sandra has 3 * 12 = 36 oranges.
  So, Emily has 7 * 36 = 252 oranges.