au:AdministrativeBoundary.nationalLevel
http://inspire.ec.europa.eu/ont/au#AdministrativeBoundary.nationalLevel
skos:definition
http://www.w3.org/2004/02/skos/core#definition
The hierarchy levels of all adjacent administrative units this boundary is part of.
@en
graph:default
https://triplydb.com/inspire/au/graphs/default