Assertion: niagara falls | /r/MadeOf | two waterfalls
Facets:
value: on the niagara river
type: LOCATION
Source sentences:
text: Niagara Falls consists of two waterfalls on the Niagara River, which marks the border between New York and Ontario, Canada: the American Falls, located on the American side of the border, and the Canadian or Horseshoe Falls located on the Canadian side.