Refer to the input text as context and select the correct relationship between 'Berkshire Hathaway' and 'Warren Buffett' from the available options.
Options: owned by, brand, distributed by, director/manager

View photo A Berkshire Hathaway shareholder poses with a likeness of Berkshire CEO Warren Buffett at the shareholder's shopping day in Omaha, Nebraska May 1, 2015.
director/manager