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.
Take context from the input text and decide on the accurate relationship between 'Smirnoff' and 'Diageo' from the options provided.
Options: stock exchange, platform, manufacturer, industry