Utilize the input text as a context reference, choose the right relationship between Airbus and Aircraft 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.

China Eastern Airlines (CEA) has signed an agreement with China Aircraft Leasing Group (CALC) to lease six new Airbus A320s.

Answer: product_or_material_produced