conversations.from: human
conversations.value: The difference in ages between Richard and Hurley is 20. If Hurley is 14 years old, what are their combined ages 40 years from now?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: If Hurley is 14 years old, and the difference in ages between Richard and Hurley is 20, Richard is 20+14 = 34
  Forty years from now, Hurley will be 14+40 = 54 years old.
  Richard will be 40+34 = 74 years forty years from now.
  Their combined ages forty years from now will be 74+54 = 128 years