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Davies is leaving to become chairman of the London School of Economics , one of the best - known parts of the University of London .
 Davies: person
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: end position 
  Option: person, entity, place 
Text: {0} 
Answer:
 Davies: person