Utilize the input text as a context reference, choose the right relationship between Vodafone and LONDON from the options. Options: 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.

LONDON (ShareCast) - (ShareCast News) - A spike in ITV (LSE: ITV.L - news ) shares late in the trading session appeared to have been provoked by reports that Liberty Global (NasdaqGS: LBTYA - news ) 's billionaire chief John Mallone might be more minded to pursue the acquisition of small mobile networks now that a tie-up with Vodafone was off the table.

Answer: headquarters_location