3985
( also called  Prince Chichibu  Memorial Stadium ) in the Aoyama district of central Tokyo is the spiritual home of Japanese rugby union and the headquarters of the  Japan  Rugby Football Union .
 country of headquarters: Prince Chichibu, Japan
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Prince Chichibu, Japan 
Answer:
 country of headquarters: Prince Chichibu, Japan