4. [ 10 points] Carter blood bank depends on a number of different types of persons for its successful operation. Draw an Enhanced Entity Relationship (EER) diagram based on the below requirements: - Each person in this organization has the following attributes: SSN, Name, Address, and Email. A person may have multiple emails. - Three types of persons are of greatest interest: employees, volunteers, and donors. - Employees only have a Date_hired attribute, volunteers only have Skills attribute, and donors only have Blood type attribute. - Employees have a relationship named Manages with Department. - There are persons other than employees, volunteers, and donors who are of interest to the organization so that a person need not belong to any of these three groups. - A person must be exactly one of these subtypes