Assertion: castle | /r/HasProperty | built on mountain
Facets:
value: to take advantage
type: PURPOSE
value: often
type: TEMPORAL
Source sentences:
text: Many castles were built on steep hills or mountains, and many had deep wide moats or lakes, sometimes concentric moats, as water defenses, like those of Kenilworth castle.
text: In the Languedoc, where castles were often built on mountain tops, castles were almost invariably in view of at least one one other castle.
text: Kerak Castle is a prime example of a spur castle, a castle built on top of a mountain to take advantage of the natural topography, as it is built on the southern end of a plateau surrounded on three sides by steep hills.