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He played twice more during the 1952 – 53 campaign , but remained primarily a reserve player during the remainder of his time with the club , appearing only when either Cummings or Aird were unavailable .
 Cummings, Aird
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cummings, Aird