Assertion: fortress's wall | /r/HasProperty | formidable defensive edifice
Facets:
value: in its own right
type: OTHER
Source sentences:
text: The outer wall was a formidable defensive edifice in its own right: in the sieges of 1422 and 1453, the Byzantines and their allies, being too few to hold both lines of wall, concentrated on the defence of the outer wall.