Our library system has several branches. Each branch has an address and a unique code. Each book belongs to a particular branch. Each book is assigned a unique barcode number and has a title and a publisher name. Each library member may borrow up to three books at a time. To join the library, a member provides an identification number and identification type, such as driver's license, passport number, or employee number.

What are the relationships?The entities are Branch, Book, and Member.