Take context from the input text and decide on the accurate relationship between 'Uniper' and 'Fortum' from the options provided.
Options: owned by, distribution format, chairperson, original broadcaster

So, now that Uniper is a strategic subsidiary and the fifth segment of the Fortum Group, it is only natural that my number one short-term priority will be to have a joint strategy for the Group in place by the end of the year.
owned by