Input: Sentence 1: The system is the UPC or in the case of books a EAN/ISBN number that when a book is scanned by a retailer identifies the book, format, suggested price point, genre, etc. --Tom Fogarty, Soundscan executive in charge of Bookscan. Sentence 2: Tom Fogarty does not believe that UPC is used in the retail sphere.
Output: 

 yes