Utilize the input text as a context reference, choose the right relationship between classic and General Motors 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 automaker says that Post to Facebook GM, Kettering converting famous factory to car museum DETROIT -- General Motors and Kettering University will convert a historic car factory in Flint, Mich., into an archive and research center that will house a collection of classic cars.

Answer: manufacturer