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.

Every sports commissioner is on the list, plus several sports team owners, including Boston Red Sox owner John Henry, New England Patriots owner Robert Kraft and Jerry Reinsdorf, owner of the Chicago Bulls and the Chicago White Sox.

Answer: owner_of: Robert Kraft, New England Patriots