What is the relationship between 'Smiths Group' and 'LONDON' in the context of the input sentence.
Options: product/material produced, headquarters location, owned by, business division

LONDON (ShareCast) - (ShareCast News) - Smiths Group (Other OTC: SMGKF - news ) chief executive Philp Bowman will report his last set of annual results on Wednesday before stepping down after eight years at the FTSE 100 technology company.
headquarters location