Utilize the input text as a context reference, choose the right relationship between Berkshire Hathaway and Warren Buffett from the options. Options: 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.

Other Articles American Airlines Boeing 777-200 flight lands in Japan for generator issue ICRA downgrades Jindal Steel and Power ratings Warren Buffett says Berkshire Hathaway still shopping abroad Infrastructure company IL&FS Transportation Networks today said its subsidiaries have signed two agreements with NHAI worth Rs 4,173.92 crore for four-laning two sections of NH-6 in Maharashtra.

Answer: chief_executive_officer