1149
Prof Gary Mauser said that Britain was making the same mistake as Canada and Australia in focusing on legal owners - a section of the law - abiding community where gun crimes , such as the Dunblane massacre , were aberrations .
 gun: instrument; Dunblane: 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: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
 gun: instrument; Dunblane: place