Oversell, Inc. has three levels of personal customers: silver, gold and platinum. Customers are identified by a CustomerID. Oversell also stores the customer name, address and balance. Platinum and Gold customers are preferred customers, and they get a special lower interest rate on their credit card balance. Platinum customers also has access to a personal customer service representative, who can serve several platinum customers. The company maintains information about the customer service rep (Employee ID number, Employee name, and the last date of contact between a specific platinum customer and the customer service rep.) In addition, Oversell, Inc. has business customers. These customers get an extended line of credit. Some customers maintain both a personal and a business account with Oversell Inc. Develop an EER model segment to represent Oversells customer structure.