Take context from the input text and decide on the accurate relationship between 'Mattel' and 'Barbie' from the options provided.
Options: location of formation, owner of, product/material produced, member of

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