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SoftBank , which is based in Tokyo , and its high-profile founder and chief executive , Masayoshi Son , have been looking for a way to get into Japan 's cellphone market , promising cut-rate services to customers who now pay some of the world 's highest fees .
 Japan, Tokyo; Tokyo, Japan; Japan, Tokyo; Masayoshi Son, Japan; Japan, Tokyo; SoftBank, Tokyo; Masayoshi Son, SoftBank
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Japan, Tokyo; Tokyo, Japan; Japan, Tokyo; Masayoshi Son, Japan; Japan, Tokyo; SoftBank, Tokyo; Masayoshi Son, SoftBank