Study the following information and answer the questions given below:
Eight persons P, Q, R, S, T, U, V, W from two families are taking breakfast around a round table. Three members are from one family and five belong to other family. Four of them are male members.
T, a male member is sitting second to right of V, a female member. In all cases R has same position with respect to S, who is second to left of Q, a female member. S is wife of W and is sitting adjacent to her husband. U is sister of W and is not sitting between V and T. Q is immediate left of V. W is sitting immediate right of P.
How many persons are sitting between P and Q when we count anticlockwise?