What is the relationship between Smirnoff and Diageo in the context of the input sentence. Choose an answer from: 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.

But the situation took a turn for the worse a week before Diageo published its figures, when it emerged that the Smirnoff vodka maker had drawn the scrutiny of the Securities and Exchange Commission over the way it distributes alcohol in the US .

Answer: parent_organization