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].
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Question: Havana (CNN) U.S. President Barack Obama put the authoritarian government in Havana on the spot Monday, taking questions from reporters and insisting that his Cuban counterpart also deliver answers to pointed queries on human rights, political prisoners and economic reforms. Though they both acknowledged deep disagreements on these issues, the two leaders found common ground on the topic of the economic embargo on Cuba, which both want lifted. Obama went so far as to declare that "the embargo's going to end," though he couldn't say when. In an extraordinary sign of the shifting attitudes, Castro was willing to answer one question on why his regime was keeping Cubans incarcerated for expressing anti-government views. But his response only underscored the schisms between himself and Obama.President Barack Obama and Cuban leader Raul Castro shook hands at the Palace of the Revolution in Old Havana on MondayScores of anti-Castro dissidents from the group Ladies in White were arrested over the weekend and detained after their weekly protest"¿Que bolá Cuba?" the U.S. President wrote on Twitter on Sunday, using an informal Cuban greeting 
 Question:On Sunday, Obama's interactions with everyday _ were carefully calibrated.

Answer: Cuban


Question: The gunman who killed nine people last week at an Oregon college shot himself in front of his classmates after being wounded by two hero cops. Also revealed on Wednesday was that Umpqua Community College shooter Christopher Harper-Mercer, 26, was discharged from the Army after attempting to commit suicide. Harper-Mercer was discharged after one month of basic training at Fort Jackson, in South Carolina, in 2008. The Wall Street Journal reports that the Army wouldn't disclose details of the 2008 suicide attempt but that it indicates Harper-Mercer was deeply troubled long before he opened fire on his classmates last Thursday.Christopher Harper-Mercer, 26, shot himself in a classroom after being wounded by two hero cops who opened fireHarper-Mercer was discharged from the Army in 2008 for trying to commit suicideTodd Spingath was one of two officers to take down Oregon shooterHis partner and fellow vet, Joe Kaney, was identified earlier this weekThe pair have been hailed for preventing further potential devastationThey rushed into Umpqua Community College five minutes after alert 
 Question:At a Wednesday news conference, authorities said that two police officers in plainclothes were the first to confront Harper-_ after he began shooting at his morning writing class.

Answer: Mercer


Question: Washington (CNN) Donald Trump's tax controversy and his self-destructive lack of discipline threaten to drain the Republican nominee of something he can't afford: time. With 36 days remaining before Election Day, the real estate mogul's campaign is consumed with the fallout from a New York Times story published over the weekend that found Trump reported a $916 million loss in 1995. That loss could mean Trump went 18 years without paying federal income taxes. Those findings -- which Trump's campaign isn't disputing but haven't been independently confirmed by CNN -- would be daunting for any presidential candidate to overcome. But they're especially challenging for Trump, who is losing control of the campaign's narrative after a strong September in which he narrowed the race with Hillary Clinton.Trump is losing control of the campaign's narrative after a strong SeptemberTime is dwindling for Trump to regain his grip on the campaign's message 
 Question:And ahead of the next presidential debate on Sunday, there's no sign Trump will do something to address the lack of focus, preparation and impulse control that helped contribute to _'s win at last week's showdown.

Answer:
Hillary Clinton