Utilize the input text as a context reference, choose the right relationship between Vodafone and Ono 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.

The Spanish phone and broadband market has been consolidating since last year after Vodafone Group Plc bought Ono and Orange SA bought Jazztel Plc.

Answer: subsidiary