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Many of the early building societies were based in taverns or coffeehouses , which had become the focus for a network of clubs and societies for co-operation and the exchange of ideas among Birmingham 's highly active citizenry as part of the movement known as the Midlands Enlightenment .
 Birmingham
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Birmingham