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Today , the most widely recognized standards for this mechanical structure are IEEE 1101.1 , IEEE 1101.10 ( also known commonly as " dot ten " ) and IEEE 1101.11 .
 IEEE, IEEE, IEEE
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 IEEE, IEEE, IEEE