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Named for the vermilion coloured clays lining the river banks , Fort Vermilion began as a trading community for the North West Company , upstream of the impassible Vermilion Chutes .
 Fort Vermilion, North West Company, Vermilion
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fort Vermilion, North West Company, Vermilion