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].

Ex Input:
Bernie Ecclestone says Lewis Hamilton is as good as Juan Manuel Fangio, Michael Schumacher and all the other greats of the track. The Formula One Group chief executive was speaking in his air-conditioned office in the Sepang paddock before Sunday's Malaysian Grand Prix, squinting through his John Lennon glasses at the state of the sport he has spent his life moulding. F1 has taken a pounding from the public and pundits since the processional opening race in Melbourne a fortnight ago. Only 75 per cent of the cars started. Only 11 drivers finished. Several teams are on the brink of bankruptcy.Bernie Ecclestone described Lewis Hamilton as '100 per cent box office'Formula One ringmaster believes Mercedes driver is 'great for the sport'He also criticised Sebastian Vettel for not 'putting himself out there' after winning four consecutive wold championships at Red BullEcclestone, 84, speaking ahead of Sunday's Malaysian Grand Prix called for sprinkler system to be introduced at six racesHe wants controversial double points ruling to return to the sport, tooCLICK HERE for all the latest F1 news 
 Question:Bernie Ecclestone, 84, rates Hamilton as the best world champion _ has ever had.

Ex Output:
F1


Ex Input:
The family of schoolgirl Alice Gross have demanded to know how her murderer got into Britain despite killing his wife in his native Latvia. The 14-year-old went missing in August last year and her body was discovered the following month in the Grand Union Canal in Ealing, west London. Her killer Arnis Zalkalns, 41, had been named as a suspect in her disappearance but his body was later found hanging in a woodland nearby. Police later confirmed that the Latvian builder, who had come to the UK in 2007, was responsible, and the CPS announced that he would have been charged with murder if alive.Alice went missing last year and body later found in canal in west LondonThe man suspected of killing her was found hanging in woodland nearbyArnis Zalkalns had been jailed in native Latvia for 7 years for killing his wifeCame to UK in 2007 and in 2009 was arrested on suspicion of sex asault 
 Question:Mr Thacker told the court, that _'s nationality was not the issue here and that Alice's family 'just want answers'.

Ex Output:
Arnis Zalkalns


Ex Input:
Washington (CNN) America is edging ever closer to a new long, national nightmare, given President Donald Trump's explosive response to signs that special counsel Robert Mueller is approaching the epicenter of White House power. The investigation has taken a serious turn in recent days, raising the clear possibility that whether Mueller finds wrongdoing or not, a period of political stress and upheaval is inevitable. Trump appears willing to test the bounds of convention and his own powers against a legal and political establishment that he believes is conspiring against him. The higher the pressure, the more defiant the President becomes -- even if it puts him at odds with his legal team.The higher the pressure, the more defiant the President becomesTrump continues to call the Russia probe a 'witch hunt' 
 Question:If Mueller decides there is a case to answer for either the President or his aides in the issue of alleged collusion with _ or over a potential cover-up, the political uproar will be incalculable.

Ex Output:

Russia