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The foundation stone was laid on the 23 September 1863 by Sydney Pierrepont , 3rd Earl Manvers .
 Sydney Pierrepont , 3rd Earl Manvers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sydney Pierrepont , 3rd Earl Manvers