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: Shocking photographs showing the bloody beheading of four alleged spies in Iraq have been released by Islamic State. The images, given the disturbing title 'Harvesting of Spies', were taken in the Iraqi province of Salahuddin and published on social media. According to the captions, the four men were accused of being spies for the Baghdad government and had been condemned to death by an Islamic court. Depraved: The images of the execution were taken in the Iraqi province of Salahuddin and published on social media Unusually for an ISIS public execution, no residents appear to have been allowed to witness the killings, despite them being carried out in a public placeWARNING: GRAPHIC CONTENTPhotographs of the execution of four alleged spies in Iraq released by ISISMen accused of spying for Baghdad government and condemned to deathThe images, published on social media, show the men being decapitatedFollows release of videos of execution of 'spies' and 'informers' last week 
 Question:Before their deaths, each man claims responsibility for spying on _, although it is unknown whether they are speaking under duress.

ISIS