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He remained in the Second Division , as he joined local rivals Port Vale in August 1921 .
 organization: Second Division; person: local rivals; organization: Port Vale
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Second Division; person: local rivals; organization: Port Vale