What is the relationship between lead and Japan 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.

Japan led regional gains, but Shanghai shares were not far behind as markets took their lead from Wall Street, where benchmarks had a strong finish after a government report showed that U.S. second-quarter economic growth was much stronger than initially estimated.

Answer: location_of_formation