TASK 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. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.
PROBLEM: (CNN) An ISIS massacre on the streets of Moscow? Bombs detonated by the same terror group in St. Petersburg? Such "huge terrorist acts" might have happened if Russian authorities hadn't detained seven alleged ISIS members, state media reported. The FSB -- Russia's security agency and the successor to the Soviet Union's KGB -- told state-run TASS news that the seven suspects were charged Wednesday for plotting terrorist attacks. They'd been detained February 7 in Yekaterinburg, Russia's fourth-largest city situated in the Sverdlovsk region in the Urals, according to a report by state-run Sputnik news citing the FSB. To date, Russia hasn't been hit by ISIS terror attacks on busy, civilian-filled areas like those in Paris, Tunis or Jakarta. But it has been a target, in part for the Kremlin's armed efforts against the Islamist extremist group in Syria.Agency: The suspects were from Russia, central Asian nations and led by someone who'd come from TurkeySearches of the suspects' houses turned up a bomb lab, guns, grenades and "extremist literature," state news saysISIS has threatened attacks in Russia, which is involved in a military campaign against the terror group in Syria 
 Questions:While ISIS itself is relatively new, the threat from Islamist extremists in _ is not. (A) ISIS (B) Moscow (C) St. Petersburg (D) Russian (E) FSB (F) Soviet Union (G) KGB (H) TASS (I) Yekaterinburg (J) Sverdlovsk (K) Urals (L) Sputnik (M) Paris (N) Tunis (O) Jakarta (P) Kremlin (Q) Islamist (R) Syria (S) Asian (T) Turkey

SOLUTION: (D)

PROBLEM: Washington (CNN) The Trump kids aren't alright. As the campaign enters its final stretch, some of Donald Trump's children are showing signs of impatience and struggling to stay on message. In the past 24 hours, Ivanka Trump and Donald Trump Jr. have cut off interviews when pressed for answers on tough questions. Trump Jr. strayed from the campaign's talking point about the Republican nominee's tax returns -- that they'll be released once an IRS audit concludes -- when he said unveiling the documents would "detract" from his father's message. And Trump Jr. caused a firestorm when, during a Thursday interview with a Philadelphia radio station, he raised the specter of the Holocaust by saying if Republicans acted like Hillary Clinton, the media would be "warming up the gas chamber." The campaign later said Trump Jr. was referring to capital punishment, though the Clinton campaign quickly seized on the remarks.Trump's children have increased their appearances on the campaign trail in recent weeksIvanka and Don Jr. both cut off interviews when faced with tough questions 
 Questions:_, in particular, often softens Trump's image and the children are known for exerting power behind the scenes and bringing discipline to the freewheeling campaign. (A) Washington (B) CNN (C) Trump (D) Donald Trump (E) Ivanka Trump (F) Donald Trump Jr. (G) Trump Jr. (H) Republican (I) IRS (J) Philadelphia (K) Holocaust (L) Republicans (M) Hillary Clinton (N) Clinton (O) Ivanka (P) Don Jr.

SOLUTION: (E)

PROBLEM: Islamic State has reduced the amount of water flowing to government-held areas in Iraq's western Anbar province by closing a dam on the Euphrates river. The reduced flow through the insurgent-held dam will threaten irrigation systems and water treatment plants in nearby areas controlled by troops and tribes opposed to the extremist group, provincial council member Taha Abdul-Ghani told The Associated Press. Abdul-Ghani said there would be no immediate effect on Shiite areas in central and southern Iraq, saying water is being diverted to those areas from the Tigris River. On Wednesday, the United Nations said it was looking into reports that ISIS had reduced the flow of water through the al-Warar dam.Reduced flow through insurgent-held al-Warar dam will threaten irrigation systems in areas controlled by troops and tribes opposed to ISISInstallation is near Ramadi, provincial capital of Anbar captured by group'The use of water as a tool of war is to be condemned in no uncertain terms,' spokesman for UN secretary-general Ban Ki-moon said 
 Questions:'With the summer heat and lack of water, the lives of these people are in danger and some are thinking of leaving their homes,' added _-Ghani, and urged the government to use the air force to bomb some of the gates of al-Warar dam and release the water. (A) Islamic State (B) Iraq (C) Anbar (D) Euphrates (E) Taha Abdul (F) Ghani (G) The Associated Press (H) Shiite (I) Tigris River (J) United Nations (K) ISIS (L) Warar (M) Ramadi (N) UN (O) Ban Ki

SOLUTION:
(E)