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: IT'S A DISASTER!... MOVIE 
Clue: Rene Russo fights to stop a deadly virus from spreading in this 1995 thriller

Answer: outbreak


Question: Category: FILTHY RICH 
Clue: Worth over $15 billion, Robson, son of Sam, runs this company, the USA's largest private employer

Answer: wal-mart


Question: Category: 9-LETTER WORDS 
Clue: This cold-induced condition can progress dangerously from tingling to gangrene

Answer:
frostbite