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It marks the west side of the mouth of the Norwalk River on northern Long Island Sound .
 location: Norwalk River; location: Long Island Sound
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Norwalk River, Long Island Sound 
Answer:
 location: Norwalk River; location: Long Island Sound