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The first rough cut was over three hours , possibly three and a half hours long and according to Sylvester Stallone , it was so bad that it made him and his agent sick .
 Sylvester Stallone
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sylvester Stallone