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His younger brother Calum is also a footballer , and was previously on the books of Clyde .
 person: Calum; organization: Clyde
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:
 person: Calum; organization: Clyde