Refer to the input text as context and select the correct relationship between 'Zillow' and 'SEATTLE' from the available options.
Options: distribution format, headquarters location, legal form, owned by

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.
headquarters location