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Investor confidence was further eroded by several accounting scandals and the resulting bankruptcies , including the Enron scandal in October 2001 , the WorldCom scandal in June 2002 , and the Adelphia Communications Corporation scandal in July 2002 .
 Enron, WorldCom, Adelphia Communications Corporation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Enron, WorldCom, Adelphia Communications Corporation