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.

As far as the fleet, as we announced in April, our fleet simplification plan went into high gear during the quarter as we officially retired the Embraer 190s, Boeing 757s, Boeing 767s, and Airbus A330-300 aircraft as well as a number of regional jets.

Answer: product_or_material_produced