instruction:
In this task, you're given a short article. Your job is to classify the article based on its category. Use the following classification labels, 0. World, 1. Sports, 2. Business, 3. Science or Technical. Label the text "0" if it contains information related to world. Label the text "1" if it contains information related to sports. Label the text "2" if it contains information related business. Label the text "3" if it contains science or technical related information. 
question:
When Shots Ring Out, a Listening Device Acts as Witness Police agencies around the country may soon be able to equip street corners with microphones and video cameras to fight gun-related crime.
answer:
3


question:
Putin moves to strengthen Kremlin's grip on power following terrorist attacks (Canadian Press) Canadian Press - MOSCOW (AP) - Responding to a string of deadly terror attacks, President Vladimir Putin on Monday moved to significantly strengthen the Kremlin's grip on power with new measures that include the naming of regional governors and an overhaul of the electoral system.
answer:
0


question:
Monitors sound Afghan poll alert Insecurity and intimidation are putting October elections in Afghanistan at risk, a new report says.
answer:

0


