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: A Yazidi sex slave has told how she was kidnapped, raped and beaten with a plastic pipe by a brutal ISIS soldier as his British teenage jihadi bride witnessed her suffering and did nothing to end it. Ferida, whose name has been changed to protect her identity, revealed her sickening abuse at the hands of the jihadi fighter during a four-month ordeal held in Deir ez-Zor, eastern Syria. In an exclusive interview with MailOnline, a tearful Ferida explained how her terrifying ordeal began when Islamic State raided her home town of Sinjar in Iraq in August last year. She was held and transferred at various prisons for a few months before being handed over to an ISIS fighter.Ferida was one of hundreds of Yazidis abducted from Sinjar, Iraq, last yearISIS fighter raped her and beat her with a pipe during four-month captivityShe recognised his wife's British accent when she was 'speaking to her family on the internet'The Yazidi woman, 35, said she contemplated suicide during her ordeal 
 Question:But sources connected to Salma's family said they had some knowledge of the girls' movements and that they had never heard of them being in Deir ez-_.

Zor