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.

Ralph Lauren is to step down as CEO of the eponymous firm he founded nearly 50 years ago, with Stefan Larsson, president of Gap Inc 's Old Navy division, taking the helm.

Answer: owned_by: Old Navy, Gap Inc; owner_of: Gap Inc, Old Navy; parent_organization: Old Navy, Gap Inc