The Smirnoff vodka maker will buy out the Dutch brewer’s stake in Brandhouse, a sales and marketing entity, while Heineken will focus on beer, ending a joint venture with Diageo that began in 2004 to sell spirits, beer and cider in Africa.
Analyze the relationship between 'Diageo' and 'Smirnoff' within the context of the input sentence.
Options: position held, owned by, owner of, subsidiary