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In the 1956 – 57 season , Harrison became established in the side , normally at outside-right with Johnny Byrne on the left , providing scoring opportunities for the front men , including Mike Deakin at centre forward and Peter Berry and Barry Pierce as the inside-forward s. Harrison himself contributed four goals , as Palace finished 20th in the table .
 Harrison, Johnny Byrne, Mike, Peter Berry, Harrison, Palace
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Harrison, Johnny Byrne, Mike, Peter Berry, Harrison, Palace