2318
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 .
 ( attack: battling,  marines: attacker, groups: attacker, bridges: place, marines: target, groups: target) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: declare bankruptcy, transfer ownership, transfer money, marry, transport, die, phone write, arrest jail, convict, sentence, sue, end organization, start organization, end position, start position, meet, elect, attack, injure, born, fine, release parole, charge indict, extradite, trial hearing, demonstrate, divorce, nominate, appeal, pardon, execute, acquit, merge organization, Arguments type: beneficiary, prosecutor, plaintiff, seller, victim, buyer, agent, destination, artifact, organization, recipient, person, place, origin, target, giver, adjudicator, attacker, vehicle, defendant, entity, instrument. 
Text: {0} 
Answer:
 ( attack: battling,  marines: attacker, groups: attacker, bridges: place, marines: target, groups: target) 