Utilize the input text as a context reference, choose the right relationship between Factor and foundation 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.

So this seemed like a natural extension of work that we have done together where we could build on the foundation of science that we have built together by bringing Factor VIII into it.

Answer: legal_form