In the context of the input sentence, determine the relationship between 'Smirnoff' and 'Diageo'.
Options: parent organization, headquarters location, distribution format, legal form

Retail and Consumer Diageo faces claims it artificially inflated sales SEC asks British drinks giant for further information on allegations it sent more cases of alcohol to its clients than they required Diageo makes Guinness and Smirnoff vodka Photo: Bloomberg
parent organization