Utilize the input text as a context reference, choose the right relationship between National Geographic Partners and joint venture 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 new expanded joint venture will operate as National Geographic Partners and will combine the National Geographic television channels with National Geographic's other digital, media and publishing, travel and licensing assets.

Answer: legal_form