130842
The original armament planned for the battery was four 210-mm navy guns ( 21 cm Kanone 39 ) , six 75mm anti-aircraft guns and one 150-mm gun in an open firing pit .
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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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