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.

Omar Arekat becomes managing director for Qatar in addition to his current role as Boeing Commercial Airplanes sales director, while Ayem Sargn Il has been named managing director of Boeing Turkey.
business_division: Boeing, Boeing Commercial Airplanes; owner_of: Boeing, Boeing Commercial Airplanes; subsidiary: Boeing, Boeing Commercial Airplanes