Assertion: river's course | /r/HasProperty | built after a series of devastating floods
Facets:
value: in the early 20th century
type: TEMPORAL
Source sentences:
text: While the river was once free-flowing and frequently flooding, forming alluvial flood plains along its banks, it is currently notable for flowing through a concrete channel on a fixed course, which was built after a series of devastating floods in the early 20th century.