Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
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Question: The Ghost Road by Pat Barker, which won the Booker Prize in 1995, is the third volume in which trilogy?

Answer: regeneration trilogy


Question: US Vice-President Joe Biden represents which state?

Answer: delaware


Question: The House of Braganza once ruled which European country?

Answer:
portugal