Utilize the input text as a context reference, choose the right relationship between 'Airbus A380' and 'Emirates' from the options.
Options: member of, product/material produced, brand, operator

And these deals follow Rolls-Royce's mammoth $9.2bn contract with Emirates back in April to supply Trent 900 engines -- as well as TotalCare maintenance packages -- to 50 Airbus A380 aircraft from 2016.
operator