conversations.from: human
conversations.value: This math problem has got me stumped: Hermione, Luna, and Celestia combined have 83 spelling badges. If Hermione has 14 and Luna has 17, how many spelling badges does Celestia have?
  Can you show me the way?
conversations.from: assistant
conversations.value: Combining Hermione and Luna has 14 + 17 = 31 spelling badges.
  Removing their spelling badges from the total, Celestia has 83 - 31 = 52 spelling badges.