Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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: Airbus, aircraft