conversations.from: human
conversations.value: Rachel bought 23 cookies and Janet gave her 42 cookies. The other day her brother ate 44 of those cookies. How many cookies are left for Rachel?
  How to solve this?
conversations.from: assistant
conversations.value: The number of Rachel's cookies is 23 + 42 = 65 cookies.
  After her brother’s feast, she was left with 65 – 44 = 21 cookies.