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Men in civilian clothes in the crowd began firing with AK - 47 assault rifles and a 45 - minute gun battle broke out .
 Men in civilian clothes in the crowd, the crowd, AK - 47, AK - 47 assault rifles, gun
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Men in civilian clothes in the crowd, the crowd, AK - 47, AK - 47 assault rifles, gun