Assertion: river's floodplain | /r/HasProperty | flat
Facets:
value: relatively
type: DEGREE
Source sentences:
text: Although a floodplain has a general downhill slope consistent with the overall stream gradient, a floodplain is relatively flat.
text: As the river moves onto flatter ground, the stream erodes the outer edges of its banks to carve a floodplain, which is a flat level area surrounding the stream channel (figure 26).