Study the following information carefully to answer these questions.
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.