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His first ever match as a Football League referee was the 2 – 1 home win by Southend over Plymouth in the old Third Division on 7 August 1999 , and resulted in him having to dismiss a player , Mick Heathcote of Plymouth .
 Southend, Plymouth, Third Division, Mick Heathcote, Plymouth
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Southend, Plymouth, Third Division, Mick Heathcote, Plymouth