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Lardner screened transports while they unloaded at Guadalcanal during November , and at dawn 28 November searched in vain for the enemy submarine which had torpedoed .
 Lardner
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lardner