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Then they managed to break to the Kampinos Forest , where , together with Podolska Cavalry Brigade and Wielkopolska Cavalry Brigade they created the Joint Cavalry Brigade of General Roman Abraham .
 Podolska Cavalry Brigade, Wielkopolska Cavalry Brigade, Cavalry Brigade, Roman Abraham
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Podolska Cavalry Brigade, Wielkopolska Cavalry Brigade, Cavalry Brigade, Roman Abraham