1404
And because New York has such strict gun laws - meaning citizens are prohibited from concealing weapons - a gunner can use bag - toting shoppers as target practice because guns laws keep mall shoppers at his mercy .
 weapons: instrument; gunner: attacker; New York: place; shoppers: 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:
 weapons: instrument; gunner: attacker; New York: place; shoppers: target