instruction:
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.
question:
Category: HISTORIC ISLANDS 
Clue: A 900-year-old organization expelled in 1798 was allowed to return to this island in 1998
answer:
malta


question:
Category: U.S. CITIES 
Clue: On May 24, 1844 Samuel Morse was in this city demonstrating his invention
answer:
washington, d.c.


question:
Category: THE BRITISH THEATRE 
Clue: Richard Attenborough, who was in the original 1952 cast of this play, helped celebrate its performance No. 20,000 in 2000
answer:

the mousetrap