Utilize the input text as a context reference, choose the right relationship between 'Mattel' and 'Barbie' from the options.
Options: member of, owned by, chief executive officer, owner of

Mattel Girls & Boys Brands-including Barbie fashion dolls and accessories ("Barbie"), Monster High, Disney Classics, Ever After High, Little Mommy, and Polly Pocket (collectively "Other Girls"), Hot Wheels and Matchbox vehicles and play sets (collectively "Wheels"), and CARS, Disney Planes, BOOMco, Radica, Toy Story, Max Steel, WWE Wrestling, Batman, and games and puzzles (collectively "Entertainment").
owner of