Directions: 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 (P, Q, R, S) have been jumbled. Find the proper sequence.

S1: Convention has a necessary part to play in the life of everyone.

S6: Their purpose, however, is always the same.

P: It is necessary and useful for this reason.

Q: Of course, there is nothing absolute about conventions.

R: They vary from country to country, from age to age.

S: In all social affairs it prescribes more or less generally accepted rules of behaviour.