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: Consider Input: (CNN) Khuram Shahzad Butt, a 27-year-old British national born in Pakistan who died in a hail of police bullets Saturday night after the London attack, was a tall, lanky, straggly bearded young man of few words -- a brainwashed follower of al-Muhajiroun, a loose grouping of British extremists supportive of ISIS linked to a large number of terrorist plots involving UK nationals. The latest on London attack CNN's Sandi Sidhu met him several times while reporting on the group in the United Kingdom between 2014 and 2016. He went by the name "Abz" or "Abu Zaitun" and seldom spoke during meetings. He was content to leave the task of proselytizing to louder, older members of the group, according to Sidhu.London attacker Khuram Shahzad Butt appeared in a 2016 Channel 4 documentary called "The Jihadis Next Door"At the time of the attack, Butt worked as a receptionist at a fitness center in Ilford, a friend from the gym said 
 Question:The identification of Butt as one of the attackers raised many questions about what _ authorities knew about him and when.

Output: British


Input: Consider Input: Three missing Bradford sisters who are believed to have fled to Syria to join ISIS with their nine children had been stopped from leaving the UK three months ago, it has emerged. Khadija, Sugra and Zohra Dawood and their nine children - all of whom are now feared to be in the hands of the terror group - were taken off a flight bound for Saudi Arabia in March. According to anti terror police, the group were put through security checks at Manchester airport which caused them to miss their flight. But they were subsequently cleared to travel when security officials discovered they were travelling to a religious pilgrimage.Khadija, Sugra and Zohra Dawood were removed from flight bound for Saudi ArabiaThey were put through security checks but subsequently allowed to travelWest Yorkshire Police say one of Bradford mothers says she is in SyriaThree sisters and their 9 children believed to have gone to Islamic State 
 Question:The last photos of the missing families show them smiling happily at the airport before their trip to _.

Output: Saudi Arabia


Input: Consider Input: Islamic militants have unleashed a wave of simultaneous attacks on Egyptian army checkpoints in the northern Sinai Peninsula, killing at least 38 soldiers. The attacks came just two days after a ISIS car bomb assassinated one of the country’s top prosecutors, Hisham Barakat. Speaking at Mr Barakat's funeral, President Abdel-Fattah el-Sisi vowed to step up a two-year crackdown on militants. The scope and intensity of today's attack underscored the resilience and advanced planning by the militants who have for years battled Egyptian security forces in northern Sinai. Except for the attack at the officers’ club, the majority of the attacks took place in the town of Sheikh Zuweid and targeted at least six military checkpoints, officials said.Militants targeted up to 15 Egyptian army and police positionsThe co-ordinated terror attacks come after the assassination of Egypt's top prosecutor, Hisham Barakat in a deadly car bomb attackPresident Sisi has vowed to launch a fresh crackdown on Islamists 
 Question:It was later announced that Mr Barakat has since died from his wounds, leading to questions over whether the prosecutor's death will lead to a decline in the number of people being put on trial for being alleged radical _.


Output: Islamic