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Studies by two U.S. universities – Virginia Tech and Georgia Tech – identify The I-85 Corridor in the Southeastern United States area as an " emergent " megalopolis including the primary cities of Birmingham , Atlanta , Greenville , Spartanburg , Charlotte , Winston-Salem , Greensboro , Durham and Raleigh with Atlanta being the largest metropolitan area and Charlotte being the largest city .
 Tech, Georgia Tech, Southeastern United States, Birmingham, Atlanta, Greenville, Spartanburg, Charlotte, Winston-Salem, Greensboro, Durham, Raleigh, Atlanta, Charlotte
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, Georgia Tech, Southeastern United States, Birmingham, Atlanta, Greenville, Spartanburg, Charlotte, Winston-Salem, Greensboro, Durham, Raleigh, Atlanta, Charlotte