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The following year he was on the winning side in the same fixture at Hampden Park , this time partnered by Jimmy McStay of Celtic .
 Hampden Park, Jimmy McStay, Celtic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hampden Park, Jimmy McStay, Celtic