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
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: declare bankruptcy, transfer ownership, marry, die, phone write, arrest jail, convict, sue, transfer money, end organization, start organization, end position, merge organization, start position, transport, charge indict, elect, attack, injure, born, extradite, release parole, sentence, demonstrate, meet, trial hearing, divorce, nominate, fine, appeal, pardon, execute, acquit 
Text: {0} 
Answer:
 attack: opened fire