13250
They flew to Seoul on Sunday to brief South Korean officials on their Northern trip .
 geographical social political: Seoul; geographical social political: South Korean; geographical social political: Northern; person: They; person: South Korean officials; person: their
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: Seoul, South Korean, Northern, They, South Korean officials, their 
Answer:
 geographical social political: Seoul; geographical social political: South Korean; geographical social political: Northern; person: They; person: South Korean officials; person: their