In this section, each item consists of six sentences of a passage. The first and sixth sentences are given as SI and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly.

S1: You must have heard about celestial bodies.

P: Some celestial bodies are very big and hot.

Q: These gaseous bodies have their own heat and light, which they emit in large amounts.

R: These celestial bodies which have their own heat and light are called stars.

S: These very big and hot bodies are made up of gases.

S6 The sun is also a star