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The Family School at Larkhall is a small , alternative school , based in South London , UK , founded by Polly Griffiths in 2007/8 to offer a Democratic education model to primary age children .
 South London
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 South London