15122
Released by Bolton , he moved to Southport in August 1977 , playing 40 times in Southport 's final season in the Football League as they failed to gain re-election at the end of the season .
 Bolton, Southport, Southport
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bolton, Southport, Southport