1966
are you optimistic that president bush is actually going to , at this time , take the steps and say what has to be said to remove the skepticism that the arab leaders are bringing to the summit ?
 bush: entity; leaders: entity
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:
 bush: entity; leaders: entity