conversations.from: human
conversations.value: Nine adults went to a play with seven children. Adult tickets are $11 each and children's tickets are $7 each. How many dollars more did the adults' tickets cost in total than the children's tickets in total?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Adults = 9 * 11 = 99
  Children = 7 * 7 = 49
  Difference: 99 - 49 = $50
  The adults' tickets cost $50 more than the children's tickets.