A well-known car rental company stores its data in a special database. This company has many customers and many types of cars as product. All customers have a unique customer_id. Customers are categorized as national customers or international customers. A customer must be national or international, and cannot belong to both of the categories at the same time. International customers are identified by their unique id, currency, company name and address composed of city state and zip code. National customers are identified by their unique id, name and address. National customers may have more than one address information. Products are identified by a unique product_id, model, type and price. Only two type of products are rented in this company. These product types are car and mini van. Each car has a color and motor attributes. Each mini van has a color and number of seats attribute. A product may belong to at le ast one of these types. Moreover, it may not belong to both of them at the same time. Customers may request products, and a product may be requested by more than one customer, also it may not be requested by any customer at all. When a product is requested or ordered by a customer; request id, request type and request content information is stored. Design an EER diagram for the system.