Utilize the input text as a context reference, choose the right relationship between Reebok and Adidas 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.

Overall sales, driven by the Adidas and Reebok brands, rose 15 percent to 3.91 billion euros.

Answer: parent_organization