Utilize the input text as a context reference, choose the right relationship between News Corp and realtor.com 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.

As part of its shift, News Corp has seen strong growth in its digital real estate business, which include U.S. website realtor.com and a stake in Australian REA Group.

Answer: subsidiary