instruction:
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].
question:
(CNN) Though many individuals likely contributed to the President's decision to fire FBI Director James Comey, one notable one may have been Roger Stone, a 64-year-old close friend of Donald Trump and central figure in the FBI investigation into Trump campaign ties to Russia. In the middle of the Watergate scandal, Stone, who engaged in dirty tricks during Richard Nixon's 1972 campaign, was discovered to have hired a Republican operative to infiltrate the George McGovern campaign and was subsequently fired from his job. After the President's resignation, Stone remained an ardent Nixon apologist and loyalist. He even had the man's face tattooed on his back and devoted his life to ruthless, anything-goes politics (or political consulting, as you may know it). Stone's motto was and continues to be: "Admit nothing, deny everything, launch counterattack." And anyone who has watched Trump closely over the years would think it was his personal slogan, too.Michael D'Antonio: Roger Stone has undoubtedly influenced President Trump's decision to fire James ComeyAs an old friend and political adviser, Stone has taught Trump be ruthless -- particularly when protecting himself from attackTherefore Comey, who was leading the investigation into Trump campaign ties to Russia, had to be taken out, writes D'Antonio 
 Question:_ has adopted a similar approach to dealing with those who oppose him.
answer:
Donald Trump


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Republican presidential frontrunner Donald Trump said it was not his job to stand up for U.S. President Barack Obama after a man at one of his campaign events said he was a Muslim and 'not even an American.' 'Am I morally obligated to defend the president every time somebody says something bad or controversial about him? I don't think so!' Trump said on Twitter on Saturday morning. Trump drew criticism on Friday from Republican and Democratic rivals in the 2016 race for the presidency when he failed to challenge a man at a New Hampshire town hall Thursday night who said Muslims were a problem in the United States.Donald Trump wrote on Twitter saying he's not morally obligated to defend President Obama every time someone makes controversial commentHe said if someone made a nasty comment about him to Obama there's 'no chance' the president would come to his rescueOn Thursday, Trump failed to correct a man at one of his campaign events who said Obama is a Muslim and 'not even an American' 
 Question:_'s campaign manager later said that Trump had had trouble hearing in the busy room.
answer:
Donald Trump


question:
Non-stop flights from Europe to Australia could become a reality thanks to a stunning 'blended-wing' plane design with hybrid engines that drastically lowers fuel consumption. Dutch airline KLM has teamed up with Delft University of Technology to produce concept designs that could be the future of planes. The main feature is a wing design that will ensure better fuel efficiency due to the aircraft being more streamlined. The AHEAD aircraft, which stands for Advanced Hybrid Engine Aircraft Development, is being designed to carry 300 passengers over a range of 8,700 miles – which would put the UK within striking distance of .The plane has a huge range - nearly 9,000 miles - as it's very fuel efficientConcept designs released by Dutch airline KLM and technology universityBut chief engineer admits it is a 'long-term study,' with 2050 the target 
 Question:But don't get excited just yet, as _'s concept is a long way from becoming reality.
answer:

KLM


