In the following question, the first and the last parts of the sentence or passage are numbered 1 and 6. The rest of the sentence or passage is split into 4 parts and named P, Q, R and S. the four parts are not given in their proper order. Read the sentences(s) and find out which of the following four combinations is correct.

1. The detective was following the murder accused woman to her home,

P. and just as he realized that his hunch about the woman having an accomplice was true,

Q. only by a small bulb, which too was flickering.

R. when he felt a tap on his back. He turned around,

S. he blacked out. He woke up tied to a chair in a dim room light

6. All of a sudden he felt a presence behind him, before that person could hit him again he yelled out loud.