response: I know that it's the name applied to three waterfalls that are on the border between the US and Canada.
original_response: I've actually visited Niagara Falls. It's three waterfalls between USA and Canada.
history: hey do you know much about Niagara Falls?
knowledge: Niagara Falls () is the collective name for three waterfalls that straddle the international border between Canada and the United States; more specifically, between the province of Ontario and the state of New York.