508
In a village near the West Bank city of Nablus on Tuesday , Israeli troops opened fire on youths throwing stones , hitting a 9 - year - old Palestinian boy in the head and critically wounding him , and hitting two 12 - year - old boys in the legs , lightly wounding them , Palestinian hospital officials said .
 attack: 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: fire