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The largest of the three services of the  Japan Self-Defense Forces  the  Japan  Ground Self-Defense Force is tasked with maintaining internal security in Japan and operates under the command of the chief of the ground staff based in the city of Ichigaya Tokyo .
 country of headquarters: Japan Self-Defense Forces, Japan
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 country of headquarters: Japan Self-Defense Forces, Japan