506
Israeli soldiers shot and killed a 16 - year - old Palestinian boy and wounded a 7 - year - old boy after opening fire at stone throwers in the Tulkarem refugee camp in the West Bank on Tuesday , Palestinian hospital officials said .
 soldiers: attacker; camp: place; boy: target; boy: 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:
 soldiers: attacker; camp: place; boy: target; boy: target