Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Three men accused of being agents of the Syrian government have been executed in a shocking new video, Islamic State has claimed. The barbaric footage, released earlier today, shows the men kneeling in the middle of a dusty road in Deir ez-Zor, Syria, as a militant brandishing a sharpened sword stands behind them. It comes just one day after the extremist group claim to have shot and beheaded more than 30 Ethiopian Christians in Libya. Each of the men are forced on to their hands and knees in the war-torn street before they are beheaded The harrowing video shows the sword used to kill the men being forged and sharpened for the executionsMen were executed on a dusty road in Deir ez-Zor, Syria, ISIS claimedSick video shows the executioner's sword being sharpened before killingsPrisoners were shackled in chains and dressed in orange jumpsuitsJust one day after 30 Ethiopian Christians were shot and beheaded in Libya 
 Question:They also demanded that _ living under its rule pay a 'special tax' known as jizya.

Christians