1400
From the Associated Press : A lone gunman opened fire with an assault rifle Sunday inside a crowded mall in upstate New York , wounding one person before running out of ammunition and being subdued by employees , authorities said .
 ( attack: opened fire,  gunman: attacker, mall: place, person: target, rifle: instrument, ammunition: 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: opened fire,  gunman: attacker, mall: place, person: target, rifle: instrument, ammunition: instrument) 