501
Israeli troops shot and killed a 16 - year - old Palestinian boy and critically injured two children , ages 7 and 9 , during conflicts in the West Bank that erupted Tuesday as Israeli and Palestinian leaders moved toward talks on a new Mideast peace plan .
 ( attack: shot,  troops: attacker, West Bank: place, boy: target, children: target) 
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: shot,  troops: attacker, West Bank: place, boy: target, children: target) 