Read the following information carefully and answer the question given below.

(i) P, Q, R, S, T, U and V are sitting on a bench and all of them are facing east.

(ii) R is on the immediate right of S.

(iii) Q is at an extreme end and has T as his neighbour.

(iv) S is sitting third from the south end.

(v) V is sitting between T and U.

Which of the following pairs of people are sitting at the extreme ends?