2470
Police say a suicide bomber blew himself up outside this cafe , called The London Cafe , earlier Sunday afternoon .
 bomber: attacker; cafe: target
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:
 bomber: attacker; cafe: target