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The Virginia Tech study proposes a broader definition , which would also include Columbus , Macon , Huntsville , Augusta , Columbia , Knoxville , Chattanooga , the Tri-Cities , Asheville and a number of smaller cities .
 Tech, Columbus, Macon, Huntsville, Augusta, Columbia, Knoxville, Chattanooga, Asheville
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tech, Columbus, Macon, Huntsville, Augusta, Columbia, Knoxville, Chattanooga, Asheville