Assertion: berlin's border | /r/HasProperty | identifiable
Facets:
value: from the air for those familiar
type: OTHER
value: from both the ground
type: LOCATION
Source sentences:
text: The inner-German border, after the work of the Grenzekommission was essentially completed in 1975 (see above), was identifiable from both the ground and the air for those familiar with its complex series of border area markings and structures.