At an Electronic Data Processing Unit, five out of the eight program sets P, Q, R, S, T, U, V and W are  to be operated daily. On any one day, except for the first day of a month, only three of the program sets must be the ones that were operated on the previous day. The program operating must also satisfy the following conditions :
(i). If program P is to be operated on a day, V cannot be operated on that day.
(ii). If Q is to be operated on a day, T must be one of the programs to be operated after Q.
(iii). If R is to be operated on a day, V must be one of the programs to be operated after R.
(iv). The last program to be operated on any day must be either S or U. If the program sets operated on a day is P, Q, W, T, U, each of the following could be the next day's progam set except :