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On February 27 , 2009 , the U.S. Securities and Exchange Commission amended its complaint to describe the alleged fraud as a " massive Ponzi scheme " .
 organization: U.S. Securities and Exchange Commission
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: U.S. Securities and Exchange Commission 
Answer:
 organization: U.S. Securities and Exchange Commission