For each exercise, you are required to build a set of tables normalized to 3NF. Tables should be described using the following notation: TABLE(field1, field2, field3, field4, field5, ) Using this notation, TABLE is the name of the table. Primary key fields are bold and underlined, like field1. Foreign key fields are italicized and required fields are in bold. Therefore, a required foreign key is in bold italics, like field2. An optional foreign key is in italics but not bold, as is field3. A primary key field that is also a foreign key is underlined, italicized, and bolded. Regular, non-key attributes are in bold when required, as is field4, and not in bold when optional, as is field5.

Exercise 1. An auto dealer has a table used to keep track of vehicle maintenance. Each vehicle has a unique VIN number and can be serviced more than once. SERVICE ( ServiceNumber, ServiceDate, ServiceCost, ServiceDescription, VehicleVIN, VehicleModel, VehicleMake, VehicleYear )