What is the relationship between 'Berkshire Hathaway' and 'Warren Buffett' in the context of the input sentence.
Options: founded by, chairperson, owned by, parent organization

Home / Nation & World / Berkshire buying Precision Castparts for $32B Berkshire Hathaway Chairman and CEO Warren Buffett speaks May 5, 2014, during an interview with Liz Claman on the Fox Business Network in Omaha, Nebraska.
chairperson