Utilize the input text as a context reference, choose the right relationship between Duracell and Berkshire Hathaway 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.

About 2,700 people work for P&G’s Duracell battery division, which P&G has agreed to sell to Berkshire Hathaway in a deal that is to close this year.

Answer: parent_organization