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Clark was seriously injured in the collision while Porter lost his life in the days following the accident .
 person: Clark; person: Porter
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: Clark, Porter 
Answer:
 person: Clark; person: Porter