4909
Falls on the Androscoggin River provided water power for sawmills .
 location: Androscoggin River
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: Androscoggin River 
Answer:
 location: Androscoggin River