conversations.from: human
conversations.value: Please show me the solution for: There are 20 stickers on a page. If you have 12 pages of stickers but lose one of the pages, then how many stickers would you have?
conversations.from: assistant
conversations.value: After losing one of the pages you have 12 - 1 = 11 pages of stickers.
  If each page has 20 stickers on it, you have 11 x 20 = 220 stickers.