Refer to the input text as context and select the correct relationship between 'Mattel' and 'Barbie' from the available options.
Options: product/material produced, member of, owner of, location of formation

The downside reflects sluggish economic conditions and lack of innovative schemes for brand awareness and brand innovation, which have been dampening point of sale (POS) momentum.Also, sluggish performance of Barbie has been a matter of concern for Mattel since the beginning of 2013.
owner of