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On March 27 , 1944 , with the threat of possible landings of Allied forces to retake the Dutch East Indies increasing , the organizational structure of the Southern Expeditionary Army changed and the IJA 16th Army was reassigned to the Japanese Seventh Area Army .
 organization: Southern Expeditionary; organization: Japanese Seventh Area Army
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: Southern Expeditionary, Japanese Seventh Area Army 
Answer:
 organization: Southern Expeditionary; organization: Japanese Seventh Area Army