What is the relationship between begin 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 Aug 31 Japanese stocks tumbled amid profit taking on Monday as sentiment soured over soft domestic industrial output data and fresh uncertainty over when the U.S. Federal Reserve will begin to raise interest rates.

Answer: location_of_formation