Assertion: weir | /r/HasProperty | small dam
Facets:
value: essentially
type: DEGREE
Source sentences:
text: A weir is a small dam built across a river to control the upstream water level.
text: A weir is a small barrier built across a stream or river to raise the water level slightly on the upstream side; essentially a small-scale dam.
text: A weir is a small dam built across a river to control the upstream water level.