1506
that ' s what we ' re doing as we come through here and completely search theses have else to make sure there ' s no one lurking on there with weapons or rpgs or some other pad to take down helos that are flying by or any other ships that are coming in through here .
 ( attack: take down,  no one: attacker, weapons: instrument, rpgs: instrument) 
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: take down,  no one: attacker, weapons: instrument, rpgs: instrument) 