-- U.S. company Berkshire Hathaway (Sao Paolo: BERK34.SA - news ) to acquire U.S. personal care and cosmetics company Procter & Gamble's Duracell battery unit (approved July 23)
What is the relationship between 'Duracell' and 'Berkshire Hathaway' in the context of the input sentence.
Options: industry, owner of, currency, owned by