You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
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Question: Category: ANNIVERSARIES & FAREWELLS 
Clue: In 2009 it celebrated its 40th anniversary with a farewell tour of the British Isles, where it was built; today, it's in Dubai

Answer: the queen elizabeth ii


Question: Category: THE REVOLUTIONARY WAR 
Clue: In April 1775 Gen. J. Warren made him an official messenger of the Committee of Safety

Answer: paul revere


Question: Category: THE SENATE 
Clue: The 2 astronauts who went on to become U.S. Senators

Answer:
john glenn