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Since the 15th century , southeastern England varieties have centred on London , which has been the centre from which dialectal innovations have spread to other dialects .
 location: England; location: London
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: England; location: London