2007
Although he admitted it was somewhat awkward to be challenged by his own clerk , Stremlow said the race was cordial and positive , with no striking campaign issues .
 person: he; person: his; person: his own clerk; person: Stremlow
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: he, his, his own clerk, Stremlow 
Answer:
 person: he; person: his; person: his own clerk; person: Stremlow