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 .
 troops: attacker; West Bank: place; boy: target; children: target
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
 troops: attacker; West Bank: place; boy: target; children: target