155
Analysts have long argued that Putin is far keener to preserve friendly relations with the United States than the pro - European , anti - war camps embedded in much of the Russian media and the foreign and defense ministries .
 None
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:
 None