Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.

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.

Answer: owned_by: Kraft Heinz, Berkshire Hathaway; parent_organization: Kraft Heinz, Berkshire Hathaway