EERD

2. GENSAN TRAVEL is a rental car agency that allows their customers to rent different classification of cars to be used in all areas of Mindanao. The agency classifies the vehicles it rents into four categories: compact, mid-size, full-size, and sport utility. The agency wants to record the following data for all vehicles: Vehicle_ID, make, model, year, and color. There are no unique attributes or any of the four classes of vehicle. The entity type vehicle has a relationship (named Rents) with a customer entity type. None of the four vehicle classes has a unique relationship with an entity type. Would you consider creating a supertype/subtype relationship for this problem? Why or why not