Analyze the relationship between 'Madame Tussauds' and 'London' within the context of the input sentence.
Options: platform, brand, headquarters location, stock exchange

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.
headquarters location