What is the relationship between Airbus and aircraft 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.

To facilitate this program, we were the first airline globally to remove seats from aircraft to enable cargo capacity in the passenger cabin, converting four Boeing 777s and three Airbus 330 aircraft.

Answer: product_or_material_produced