conversations.from: human
conversations.value: Lois has 40 books. She gives a fourth of her books to her nephew. From her remaining books, she donates a third of her books to the library. Then she purchases 3 new books from the book store. How many books does Lois have now?
  Find the solution.
conversations.from: assistant
conversations.value: Lois gives 40 / 4 = 10 books to her nephew
  Then Lois has 40 - 10 = 30 books
  Lois donates 30 / 3 = 10 books to the library
  Then Lois has 30 - 10 = 20 books
  After purchasing new books, Lois has 20 + 3 = 23 books