In the following items, each passage consists of six sentences. The first sentence (S1) and the final sentence (S6) are given. The middle four sentences in each have been removed and jumbled up. These are labelled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark accordingly on the Answer Sheet. 

S1: Our villages are not now as serene and peaceful as they had been twenty five years ago. 
P: The village people now seldom live under the overall command of any single powerful headman. 
Q: Local political leaders mostly control and command them
R: Party politics had entered into the peaceful villages forcing the villagers to live polarized political lives
S: One dangerous consequence of this is that they are often dragged into clashes even with their own relations of different political beliefs. 
S6: This often vitiates the traditional tranquility of the rural way of living.