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.

"International Airlines Group (IAG) is converting eight A350-900 and three Airbus A330-200 long-haul aircraft options into firm orders for Iberia.

Answer: product_or_material_produced