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: Sinjar, Iraq (CNN) Sinjar is yielding up its secrets -- the whispers of those who prayed as they were killed. Grief for those captured and never seen again. Mahama al-Shangali is the mayor of this town of fewer than 90,000 people in northern Iraq, in the heart of Yazidi country. When ISIS swept through the Yazidi homeland, it was along the road into Sinjar that men, women and children who had been rounded up from the surrounding villages were driven. Evidence of a massacre As the mayor walks us to the other side of the heaped earth defenses that encircle the town, he tells us this was the site of an ISIS massacre.CNN's Nima Elbagir files an exclusive report from Sinjar, in northern IraqA mass grave there is said to hold more than 130 bodiesSurviving children are haunted by their experiences 
 Question:Those who managed to flee _ have found refuge here.

ISIS