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American Tom Johnson successfully defended his IBF featherweight title when he earned a unanimous points decision over Venezuela 's Ramon Guzman on Saturday .
 person: Ramon Guzman; location: Venezuela; organization: IBF; else: American; person: Tom Johnson
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 person: Ramon Guzman; location: Venezuela; organization: IBF; else: American; person: Tom Johnson