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The gunner was sat in a large cockpit in the nose of the aircraft , with a rotating mount for the cannon and an armoured floor claimed to be bulletproof , while the pilot sat in a cockpit behind the wings , so that the pilot and gunner could not communicate .
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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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