conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: There are 250 books inside a library. On Tuesday, 120 books are taken out to be read by children. On Wednesday, 35 books are returned. On Thursday, another 15 books are withdrawn from the library. How many books are now in the library?
conversations.from: assistant
conversations.value: On Tuesday, 120 books were taken out 250 - 120 = 130 books
  On Wednesday, 35 books were returned 130 + 35 = 165 books
  On Thursday, 15 books were borrowed 165 - 15 = 150 books