Analyze the relationship between 'Johnnie Walker' and 'Diageo' within the context of the input sentence.
Options: product/material produced, business division, owned by, member of

China Slowdown European consumer-product companies also are suffering from the slowdown in China and other emerging markets, so their share prices have been depressed, said Herro, who owns shares in Diageo Plc, the maker of Guinness stout and Johnnie Walker whisky, and Cie. Financiere Richemont SA, the Swiss manufacturer of Cartier jewelry and Montblanc pens.
owned by