Airport is co typed as location so I would like to set airport as the containedby value for the correct locations.
For example Amsterdam Schiphol should be contained by Amsterdam and Netherlands.
Got some script and run it on the sandbox, it will get the airports serves location and add the airport as contains value for the serves location and all locations that contain the serves.
Like Amsterdam Schiphol serves Amsterdam so schiphol is added as a value contains for amsterdam, amsterdam is contained by netherlands so schiphol is added as contains value for netherlands.

