S1: Roderick Usher has always been a quiet person who talked little of himself.

S6: In the part of the country where he lived, the “House of Usher” had come to mean both the family and its ancestral mansion.

P: Many of his ancestors had been famous for their artistic and musical abilities.

Q: Others were known for their exceptional generosity and charity.

R: Yet I did know that his family was an old one.

S: So I did not know too much about him.

The correct sequence should be

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