Utilize the input text as a context reference, choose the right relationship between Boeing and Boeing Commercial Airplanes from the options. Options: 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