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.

Category: PHRASE ORIGINS 
Clue: In 1945 George Orwell coined this 2-word phrase for "an epoch as horribly stable as the slave empires of antiquity"
cold war

Category: TV CHARACTERS 
Clue: She was born on February 22, 10,000 B.C. weighing 6 pounds, 12 ounces
pebbles flintstone

Category: THE BEATLES 
Clue: Fittingly, the cover of this Beatles album shows the Fab Four engaging in a semaphore message

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