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The French Navy 's , laid down in 1873 and launched in 1876 , was a central battery and barbette warship which became the first battleship in the world to use steel as the principal building material .
 French Navy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 French Navy