Assertion: castle's construction | /r/CapableOf | serve the purpose of a watch tower
Facets:
value: to guard certain roads
type: PURPOSE
value: mainly
type: DEGREE
Source sentences:
text: These constructions mainly served the purpose of a watch tower, to guard certain roads, passes, and borders.
text: These constructions mainly served the purpose of a watch tower, to guard certain roads, passes, and borders.