Utilize the input text as a context reference, choose the right relationship between Telxius and Telefónica 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.

And in addition, you know that we have Telefónica Infra, which on Telxius that has a significant amount of towers that could put into value.

Answer: owned_by