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.

In a statement to the Tokyo Stock Exchange where SoftBank is listed, the heir apparent to founder & CEO Masayoshi Son said the investment is a reflection of confidence in the prospects of the company.

Answer: headquarters_location