What is the relationship between Trulia and Zillow in the context of the input sentence. Choose an answer from: 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.

Although Zillow and competitor Trulia ( TRLA ) have a 90% to 95% access to real estate listings, Realtor.com has upwards of 98% coverage with superior timeliness.

Answer: parent_organization