Study the following information carefully and answer the given questions.
P, Q, R, S, T, V, X and Y are seated in a straight line facing north. P sits fourth to the left of V. V sits either sixth from the left end of the line or fourth from the right end of the line. S sits second to the right of R. R is not an immediate neighbour of V. T and Q are immediate neighbours of each other but neither T nor Q sits at extreme ends of the line. Only one person sits between T and X. X does not sit at the extreme end of the line.
Who amongst the following sits exactly in the middle of the persons who sit second from the left and the person who sits fifth from the right?