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Police say a suicide bomber blew himself up outside this cafe , called The London Cafe , earlier Sunday afternoon .
 Police, a suicide bomber, himself, this cafe
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Police, a suicide bomber, himself, this cafe