1505
one concern these men have in the waterways of iraq is the threat of an ambush , so there are five weapon stations on the special operations craft .
 waterways: place; men: 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:
 waterways: place; men: target