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: Which London Underground line connects Euston and Waterloo?

Answer: northern line


Question: Who is the mother of French actress Lou Doillon, the half-sister of Charlotte Gainsbourg?

Answer: jane birkin


Question: Whose last recorded words in the House of Commons were: I wish everyone, friend or foe, well. And that is that. The end  ?

Answer:
tony blair