Assertion: fish wheel | /r/ObjectUse | used on the columbia river
Facets:
value: by large commercial operations
type: OTHER
value: in the early twentieth century
type: TEMPORAL
value: in oregon
type: LOCATION
Source sentences:
text: Fish wheels were used on the Columbia River in Oregon by large commercial operations in the early twentieth century, until were banned by the U.S. government for their contribution to destroying the salmon population (see below).