<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["de", "en"].<end_of_turn>
<start_of_turn>user
Mit welchen vier englischen Buchstaben wird die weltweite Standardnummer für Bücher bezeichnet?<end_of_turn>
<start_of_turn>model
ISBN, or "International Standard Book Number," is the international standard number assigned to books. A distinct numerical commercial book identification known as the ISBN makes it easier to identify one book (or book edition) from another. It is usually located next to the barcode on a book's back cover.<end_of_turn><eos>