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Biography Carpenter was a son of Philip Herbert Carpenter DSc FRS , a schoolmaster at Eton College , a grandson of the naturalist and physiologist William Benjamin Carpenter , and a great-grandson of Lant Carpenter , a Unitarian minister .
 Carpenter, Carpenter, FRS, Eton, William Benjamin Carpenter, Lant Carpenter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Carpenter, Carpenter, FRS, Eton, William Benjamin Carpenter, Lant Carpenter