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Others , including Jonathan H. Poston and the Classical American Homes Preservation Trust , have suggested Charles Friedrich Reichardt , a highly regarded Prussian architect , who was working in Charleston at the time on the new Charleston Hotel [ now demolished ] , built in the Greek Revival style .
 Charleston, Charleston
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Charleston, Charleston