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The regiment moved in June to Gettysburg , where the division , under Caldwell , fought brilliantly on July 2 in the celebrated wheat-field and on the 3d defended its position stubbornly against Pickett 's assault .
 Caldwell, Pickett
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Caldwell, Pickett