305572
Intended as successors of the 80-gun Bucentaure class by Jean Tupinier , they introduced the innovation of having straight walls , instead of the Tumblehome design that had prevailed until then ; this tended to heighten the ships ' centre of gravity , but provided much more room for equipment in the upper decks .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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