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.

Public demand excluding asset sales jumped 2.7 per cent to $8.7 billion, with defence accounting for around 30 per cent of that after the government shelled out $1 billion for two extra C-17 transport aircraft, two Airbus re-fuelling aircraft for $400 million, a $900 million defence communication system, a $325 million anti-rocket system and the ongoing $125 million- to $120 million cost of the Iraq and Syrian mission, according to ministerial announcements since March.
product_or_material_produced