What is the relationship between bright blue and London 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.

The couple has yet to confirm the pregnancy, but Riley’s baby bump was on full display as they walked the bright blue carpet for the London premiere of his latest film, “Legend.” Also accompanying them was Hardy’s dog, a yellow lab mix named Woody.

Answer: headquarters_location