Utilize the input text as a context reference, choose the right relationship between Mattel and Barbie 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.

Last year, American Girl — which is owned by toy manufacturer Mattel MAT, -3.02% , which also sells Barbie dolls — discontinued four dolls, two of which were dolls of color, from its historical collection.

Answer: owner_of