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The known distribution of " Euryoryzomys emmonsae " is limited to a portion of the Amazon rainforest south of the Amazon River in the state of Pará , between the Xingu and Tocantins rivers , but the limits of its range remain inadequately known .
 Amazon, Amazon River, Pará, Xingu, Tocantins
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Amazon, Amazon River, Pará, Xingu, Tocantins