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King 's beliefs militated against his staging a violent event , and he negotiated an agreement with Mayor Richard J. Daley to cancel a march in order to avoid the violence that he feared would result .
 Richard J. Daley
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Richard J. Daley