What is the relationship between SoftBank and TOKYO in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

TOKYO - The successor-in-waiting at SoftBank says he would buy a whopping $A657 million in company shares, after his move to the Japanese mobile carrier from Google.

Answer: headquarters_location