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He made his Crewe debut a year later coming on as a second half substitute in the League One defeat to Milwall at Gresty Road .
 Crewe, League One, Milwall
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Crewe, League One, Milwall