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Places Fans Rules named after NFL figures Throughout the league 's history , a number of rules have been enacted largely because of exploits on the field by a single coach , owner , player , or referee .
 organization: NFL
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: NFL 
Answer:
 organization: NFL