Question
S1: The Hound of Baskervilles was feared by the people of the area.
P: Some people spoke of seeing a hugh, shadowy from a Hound at midnight on the moor.
Q: But they spoke of it in tones of horror.
R: Nobody had actually seen the hound.
S: This shadowy form did not reveal any details about the animal.
S6: The Hound of Baskervilles remains an unsolved mystery.
The proper sequence should be: