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.

Shares of ComScore Inc. rose $3.53 to $45.02 in premarket trading while shares of Rentrak jumped $5.61, or 12.9 percent to $49.06.

Answer: owner_of