Draw the domain model class diagram on the following business rules: A hospital has 140 doctors. Each doctor is assigned to a specific department. A department has a minimum of 3 doctors. A doctor can be full-time or part-time. Part-time doctors are paid a weekly salary based on the number of hours worked, while full-time doctors get a monthly salary. Each doctor has at least one nurse assigned to help him, and the nurse is assigned to one doctor. A doctor can perform between 2 and 4 operations a day and at least 2 doctors must be present in each operation. Each operation has one patient who can have more than one operation. Notes: a. Identify the primary key and