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Aguilar was released by Udinese in July 2010 , immediately signing a four-year contract with former club Hércules , returned to the top division after an absence of 13 years .
 Aguilar, Udinese, Hércules, division
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Aguilar, Udinese, Hércules, division