561
In interviews last year , Giuliani said Nathan gave him `` tremendous emotional support '' through his treatment for prostate cancer and as he led the city during the aftermath of the Sept . 11 terrorist attack on the World Trade Center .
 attack: attack
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: attack