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: RIVERS 
Clue: In 1951 it was determined that this river's source was in the Sierra Parima of Venezuela

Answer: the orinoco


Question: Category: COUNTRIES BY NEWSPAPER 
Clue: The Connaught Telegraph & The Galway Advertiser

Answer: ireland


Question: Category: "FOO" FINDERS 
Clue: Iron pyrite

Answer:
fool\'s gold