Assertion: spillway | /r/HasProperty | key element
Facets:
value: in pond construction
type: LOCATION
Source sentences:
text: Spillways are a key element in pond construction, but often they are overlooked.
text: The spillway is a key part of the dam, allowing large discharges of water when the reservoir is nearly full.
text: Spillways are a key element in pond construction, but they may be overlooked in favor of a new riding mower or vacation trip.