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He finished the 2010 – 11 season on loan at Swindon Town , suffering relegation from League One , before moving to League Two side Southend United on a season-long loan in the 2011 – 12 season .
 Swindon Town, League One, League Two, Southend United
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swindon Town, League One, League Two, Southend United