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while we do , we want to tell you marines battling for control of the bridges in the southern city of nasiriyah face stiff resistance from iraqi paramilitary groups today .
 marines: attacker; groups: attacker; bridges: place; marines: target; groups: 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:
 marines: attacker; groups: attacker; bridges: place; marines: target; groups: target