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Her designer , Sir Eustace Tennyson d'Eyncourt , had wanted small-bore water-tube boilers and geared turbines to give her a speed of , but he received no support from the authorities and the engine makers refused his request .
 Eustace Tennyson d'Eyncourt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Eustace Tennyson d'Eyncourt