IAG's plan to buy Aer Lingus and build a new transatlantic hub at Dublin airport won the support last week of Ryanair , which holds a 30pc stake in its rival, after convincing the Irish government to sell its 25pc stake in May .
Refer to the input text as context and select the correct relationship between 'Ryanair' and 'Dublin airport' from the available options.
Options: chief executive officer, owned by, publisher, headquarters location