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Negotiations between Washington and Pyongyang on their nuclear dispute have been set for April 23 in Bejing and are widely seen here as a blow to Moscow efforts to stamp authority on the region by organizing such a meeting .
 Washington: entity; Pyongyang: entity; Bejing: place
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: meet 
  Option: entity, place 
Text: {0} 
Answer:
 Washington: entity; Pyongyang: entity; Bejing: place