Assertion: castle | /r/HasProperty | built on hilltop
Facets:
value: with tall towers
type: OTHER
value: often
type: TEMPORAL
Source sentences:
text: Castles were often built on hilltops or surrounded by water to make them easier to defend.
text: Is it a masonry edifice constructed on a hilltop with tall towers punctuating the curtain walls topped by battlements?