What is the relationship between Madame Tussauds 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.

Analysts had expected Merlin, which also runs Madame Tussauds waxworks and the London Eye, to make 273 million pounds profit this year, according to a Thomson Reuters (Dusseldorf: TOC.DU - news ) forecast.

Answer: headquarters_location