S1 and S6 are given. Find the proper sequence of the middle four sentences P, Q, R, S: S1: Gaganyaan is a national programme wherein ISRO is leveraging the domain expertise of various agencies for expediting its execution. S6: It will lay the foundation for a sustained Indian human space exploration programme in the long run. P: With this programme, a new vertical has been created within ISRO to steer this growth. Q: The Gaganyaan Programme marks an inflection point in the growth profile of India’s space endeavour. R: This new vertical envisages undertaking the demonstration of human space flight to Low Earth Orbit in the short-term. S: A new ISRO centre, Human Spaceflight Centre has been formed for Low Earth Orbit flights. The correct sequence should be :