13.13 Continue the process of normalizing the Client and PropertyRentalOwner 1NF relations shown in Figure 13.13 to 3NF relations. At the end of this process check that the resultant 3NF relations are the same as those pro- duced from the alternative ClientRental 1NF relation shown in Figure 13.16. 13.14 Examine the Patient Medication Form for the Wellmeadows Hospital case study shown in Figure 13.18. (a) Identify the functional dependencies represented by the attributes shown in the form in Figure 13.18. State any assumptions you make about the data and the attributes shown in this form. (b) Describe and illustrate the process of normalizing the attributes shown in Figure 13.18 to produce a set of well-designed 3NF relations. (c) Identify the primary, alternate, and foreign keys in your 3NF relations. 13.15 The table shown in Figure 13.19 lists sample dentist/patient appointment data. A patient is given an appoint- ment at a specific time and date with a dentist located at a particular surgery. On each day of patient appoint- ments, a dentist is allocated to a specific surgery for that day. (a) The table shown in Figure 13.19 is susceptible to update anomalies. Provide examples of insertion, deletion, and update anomalies. (b) Identify the functional dependencies represented by the attributes shown in the table of Figure 13.19. State any assumptions you make about the data and the attributes shown in this table. (c) Describe and illustrate the process of normalizing the table shown in Figure 13.19 to 3NF relations. Identify the primary, alternate, and foreign keys in your 3NF relations. 13.16 An agency called Instant Cover supplies part-time/temporary staff to hotels within Scotland. The table shown in Figure 13.20 displays sample data, which lists the time spent by agency staff working at various hotels. The National Insurance Number (NIN) is unique for every member of staff.