What is the relationship between Boeing and Boeing Commercial Airplanes 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.

Omar Arekat becomes managing director for Qatar in addition to his current role as Boeing Commercial Airplanes sales director, while Ayem Sargn Il has been named managing director of Boeing Turkey.

Answer: business_division