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The cockpit had excellent visibility for the two pilots who sat side by side forward of the comfortable passenger compartment which seated six in three pairs on adjustable seats , with electric lighting , controlled ventilation and controlled heating from heat exchangers on the engine exhausts .
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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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