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: INTERNATIONAL FILM DIRECTORS 
Clue: This director of an Oscar-winning film is fighting to preserve Angel Island, site of a former immigration station in S.F. Bay
answer:
ang lee


question:
Category: TECHNOLOGY 
Clue: In 1913 this alloy was invented by Harry Brearley of Sheffield, England, a city known for its cutlery since before 1400
answer:
stainless steel


question:
Category: HISTORIC GEOGRAPHY 
Clue: Named for its shape, this region stretches NW from the Persian Gulf, W. to Syria, then S. through Palestine
answer:

fertile crescent