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The Gumbaynggirr lands cover an area of the Mid North Coast from the Nambucca River to as far north as the Clarence River ( Grafton ) , west to Armidale and eastward to the Pacific coast , making the Gumbaynggirr tribe one of the largest in NSW .
 Grafton, Armidale
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Grafton, Armidale