Planemaker Airbus Group SE and aircraft lessor Intrepid Aviation Ltd are the biggest creditors to Skymark, which ran into financial trouble after embarking on an ambitious expansion that included buying Airbus A380 jumbo jets.
Refer to the input text as context and select the correct relationship between 'Airbus Group' and 'Aviation' from the available options.
Options: position held, industry, chief executive officer, parent organization