21. The following EER diagram describes a publisher specializing in large edited works Transform the diagram into a relational schema and show the referential integrity constraints among relations. (5%) AUTHOR AuthorlD Auth Name (Auth Last Name Auth First Name, Auth Middle Initial) Auth Phone Auth Email Auth Expertise) EDITOR Editor ID Editor LName Editor FName Editor Institution AUTHOR ASSIGNMEN CHAPTER BOOK Chapter ID Chapter Number Chapter Title Author Position Author Type (Is Lead Author?, Is Contact Author?) Includes Book Nbr Book ISBN Book Title Book Price ORDER LINE Orderline Nbr OL Price OL Discount OL Q ORDER WHOLESALER Cust ID Order ID Order Date Order Delivery Date Places Cust Name uantity