Utilize the input text as a context reference, choose the right relationship between Nintendo and DeNA 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.

In March, Nintendo announced an alliance with Japanese mobile game company DeNA Co. to develop games for mobile devices.

Answer: owner_of