What is the relationship between Berkshire Hathaway and Warren Buffett 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.

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.

Answer: director_/_manager