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This runoff water eventually runs into the Niagara River and Lake Ontario , sources of drinking water to millions of people .
 location: Niagara River; location: Lake Ontario
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Niagara River, Lake Ontario 
Answer:
 location: Niagara River; location: Lake Ontario