Utilize the input text as a context reference, choose the right relationship between 'Kraft Heinz' and 'Berkshire Hathaway' from the options.
Options: parent organization, member of, chairperson, location of formation

Berkshire Hathaway Inc and Brazilian investment firm 3G Capital, which together bought Heinz in 2013, own 51 percent of Kraft Heinz and control six of its 11 board seats, including one for Berkshire chairman Warren Buffett.
parent organization