Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.

SEATTLE and CINCINNATI, July 22, 2015 /PRNewswire/ -- Zillow Group (NASDAQ:Z), which houses a portfolio of the largest and most vibrant real estate and home-related brands on mobile and Web, today announced it has entered into a definitive agreement to buy DotLoop, a Cincinnati-based company that simplifies real estate transactions by enabling brokerages, real estate agents, and their clients to share, edit, sign and store documents digitally.

Answer: headquarters_location: Zillow, SEATTLE