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During the English Civil War the town was besieged between 1642 and 1646 by the Royalists , but after the Restoration a Royal Naval base was established at Devonport Dockyard .
 Royal Naval, Devonport Dockyard
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Royal Naval, Devonport Dockyard