Industry sources have said Airbus Group is exploring increasing its stake in tandem with BAE Systems as part of a wider move that could see Airbus cede its 50 percent share of turboprop maker ATR to its joint-venture partner Finmeccanica.
Analyze the relationship between 'Airbus Group' and 'Airbus' within the context of the input sentence.
Options: headquarters location, position held, subsidiary, legal form