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London shares , boosted by Wall Street , added to early gains with the blue chip FTSE 100 index hitting a new peak of 3921.8 before dropping back slightly .
 FTSE 100, Wall Street, London
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 FTSE 100, Wall Street, London