. As the new DBA for Little Rock public libraries, you want to set up a database that tracks important data. There are fourteen LR libraries, which have many books. Each individual book is assigned to one library (book is identified by ISBN; in addition track nr_copies). A library patron checks out many books, and a book of course, may be checked out to many patrons. Track the date a book is checked out and its due date. For extra credit, indicate in the ERD how you would handle different copies of the same book.