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arnett had been covering the war for national geographic , which also fired him as tv reports were given exclusively to nbc and msnbc .
 organization: national geographic , which also fired him as tv reports were given exclusively to nbc and msnbc; organization: which; organization: nbc; organization: msnbc; person: arnett; person: him
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
 Entities: national geographic , which also fired him as tv reports were given exclusively to nbc and msnbc, which, nbc, msnbc, arnett, him 
Answer:
 organization: national geographic , which also fired him as tv reports were given exclusively to nbc and msnbc; organization: which; organization: nbc; organization: msnbc; person: arnett; person: him