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Fred Freiberger ( February 19 , 1915 – March 2 , 2003 ) was an American film and television screenwriter and television producer , with a career spanning four decades including The Beast from 20,000 Fathoms , Star Trek , and Space : 1999 .
 Fred Freiberger
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fred Freiberger