What is the relationship between Robert Kraft and New England Patriots in the context of the input sentence. Choose an answer from: 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