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Following his time in South Korea , Wu became China 's ambassador to Japan , serving from July 2001 until August 2004 ; he returned to China to take up his post as Vice Minister of Foreign affairs at the end of that assignment .
 location: Korea; person: Wu; organization: Foreign
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: Korea, Wu, Foreign 
Answer:
 location: Korea; person: Wu; organization: Foreign