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 consistency, answers should be in all lower cased letters.
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Question: Category: A YEAR ENDING IN 11 
Clue: Oueen Anne of England establishes the Ascot horse races

Answer: 1711


Question: Category: THE 1970s MUSIC SCENE 
Clue: The 1972 film "Fillmore" chronicled the closing of promoter Bill Graham's Fillmore West in this city

Answer: san francisco


Question: Category: MYTHOLOGY 
Clue: This Greek sea god could cause springs to flow & create storms with a flourish of his trident

Answer:
poseidon