text: class Book:
      def __init__(self, title, author, location):
          self.title = title
          self.author = author
          self.location = location
          self.page = 0
  
      def turn_page(self, page):
          self.page = page
  
  
  class Library:
      def __init__(self, books):
          self.books = books
  
      def find_book(self, title):
          for book in self.books:
              if book == title:
                  return book
  