Read the Colonial Adventure Tours Case in DMC Chap 1 (from Page 16 to Page 21) or the PDF file on myCourses. There are five relations in this case (Guide, Trip, Customer, Reservation, and TripGuides).

a) Indicate any instances in which a foreign key serves as part of the primary key of the relation in which it is a foreign key (if any). Why does each of those relations require a multi-attribute primary key?

b) Identify the relations (tables) that support many-to-many relationships (if any), the primary keys of those relations (tables).

Guide Customer CustomerNum Trip TripID Guide Num LastName FirstName Address City State PostalCode Phone TripName StartLocation State Distance MaxGrpSize Type Season LastName FirstName Address City State PostalCode PhoneNum HireDate Reservation ReservationID TripID TripDate NumPersons Trip Price Other Fees CustomerNum TripGuides TripID GuideNum