Refer to the input text as context and select the correct relationship between 'Mattel' and 'Barbie' from the available options.
Options: owner of, distribution format, employer, owned by

Mattel Inc. said Thursday it swung to a loss in its second quarter, though the toy maker posted a surprise profit on an adjusted basis, as sales in the iconic Barbie doll line declined for a sixth-straight quarter.
owner of