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The river was originally designated the Bear River by Captain Richards , but was renamed in 1923 in relation to Bedwell Sound .
 person: Captain Richards
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: Captain Richards 
Answer:
 person: Captain Richards