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The film also follows Barlow on a fact-finding excursion to Fort McMurray , Alberta to learn about the effects of oil sands operations on water sources such as the Athabasca River and its impact on First Nations communities , namely the Dene and Cree peoples of Fort Chipewyan .
 person: Barlow; location: Fort McMurray; location: Alberta; organization: Nations; location: Fort Chipewyan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Barlow; location: Fort McMurray; location: Alberta; organization: Nations; location: Fort Chipewyan