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: (CNN) Flanked by Iraqi forces of all stripes, Prime Minister Haider al-Abadi declared Mosul has been recaptured from ISIS. "From here, from the heart of the liberated and free Mosul, by the sacrifices of the Iraqis from all the provinces, we declare the great victory for all of Iraq and Iraqis," al-Abadi announced Monday. "This is a great celebration that crowned the victories of the fighters and the Iraqis over the last three years." The US-led coalition fighting ISIS, Combined Joint Task Force Operation Inherent Resolve, congratulated Iraqi security forces "on their remarkable progress against ISIS while making extraordinary efforts to safeguard civilian lives."The US-led coalition fighting ISIS congratulates Iraqi security forcesThere has been little progress in a deal on who will govern, a source says 
 Question:But al-_ has tried hard to brand the fight against ISIS as a national one, involving a range of ethno-religious groups fighting under one national Iraqi flag.

Output: Abadi


Input: Consider Input: (CNN) -- Secretary of State Hillary Clinton will finally take questions from members of Congress on Wednesday about the deadly terror attack on the U.S. diplomatic mission in Benghazi, Libya. Lawmakers have long wanted Clinton's full accounting of the September 11 assault that killed Ambassador Christopher Stevens and three other Americans. They also want to ask her about diplomatic security, which the State Department has since re-examined at posts located in overseas hot spots. Agency officials have acknowledged shortcomings and promised changes. Some of the toughest questions before the House Foreign Affairs Committee and the Senate Foreign Relations Committee are expected to focus on the Obama administration's slow-to-evolve public explanation of the attack, which triggered an uproar in the middle of a presidential election campaign.Senate, House to question Hillary Clinton on Wednesday about Benghazi attackDid she know about growing militant danger; Did she see cables explaining threat?Why has only one suspect been detained, and then released?Where did Susan Rice's now infamous 'talking points' originate; why didn't Clinton give them? 
 Question:The issue was so polarizing that Clinton's decision to postpone an initial appearance before _ in December due to health problems was questioned by her harshest critics as a possible dodge.


Output: Congress