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Previous head coach Wade Phillips was relieved of his duties as coach and replaced by Tennessee Titans defensive coordinator Gregg Williams .
 person: Wade Phillips; organization: Tennessee Titans; person: Gregg Williams
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: Wade Phillips, Tennessee Titans, Gregg Williams 
Answer:
 person: Wade Phillips; organization: Tennessee Titans; person: Gregg Williams