Utilize the input text as a context reference, choose the right relationship between ComScore and Rentrak 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.

NEW YORK (AP) -- Shares of ComScore soared more than 8 percent before the opening bell Wednesday on news that it would acquire Rentrak in an all-stock deal to create a larger ratings and media analysis company.

Answer: owner_of