In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .

Example Input: They are a mysterious relative of the Neanderthals who are thought to have roamed the plains of Siberia and east Asia long before modern humans arrived on the continent. But little is known about the Denisovans, a sister species of the Neanderthals who first emerged around 200,000 years ago, as so few of their fossilised remains have been discovered. Now researchers have unpicked a tiny piece of the puzzle about how this enigmatic human species lived - they regularly inhabited the same caves. Using pioneering DNA analysis of teeth and a fragment of pinky finger bone found at the Denisova cave in Altai Krai, in the Altai Mountains near Barnaul, Russia, the researchers have discovered they belonged to three individuals who lived there tens of thousands of years apart.Geneticists studied DNA from teeth and a pinky bone from a Siberian caveThey were found to belong to individuals living thousands of years apartIt has provided clues about how this mysterious human species livedThe Denisovans are thought to be a sister species of the Neanderthal
Example Output: 'Moreover, we find that nuclear diversity among the four _ is higher than among seven Neanderthals for which nuclear DNA have previously been recovered.

Example Input: (CNN) There have been eight lethal terrorist attacks in Europe since 2014, five of them in France alone, carried out by ISIS or by "lone wolves" inspired by the terror group or by al Qaeda. What do these attacks have in common? The terrorists are almost invariably criminals who have either served time in the French or Belgian prison systems, or they have been convicted for lesser offenses but have avoided jail time. Mohamed Lahouaiej-Bouhlel, who killed at least 84 people Thursday in Nice, France, had a long record of petty crimes. Bouhlel assaulted a motorist last year for which he received a six-month suspended sentence.Peter Bergen: Many of those behind terror attacks in Europe shared criminal backgroundConditions in French prisons incubated the radicalization of many terrorists, he says
Example Output: _ and Belgian prisons have proven to be universities of jihad.

Example Input: The Republican establishment may hope this is the beginning of the end for Donald Trump's circus-like run for the presidency. But as the fallout intensifies after the billionaire businessman mocked Sen. John McCain's war hero status, Trump's supporters are more excited than ever about his chances. 'I love to see them jump all over him 'cause they're just giving him a clear road. I love it!' said Trump supporter Frank Candelieri, 89, from Merrimack, N.H., of the backlash his candidate faced in recent days. Candelieri, a World War II vet who said he won a Purple Heart fighting in the Battle of the Bulge, said he wasn't offended by Trump's comments.'I think it's going to improve his viability to be honest with you,' argued one of Trump's county-level chairmen in New Hampshire'The more Mr. Trump is being beaten on by people, obviously the better his polling numbers are''I love to see them jump all over him 'cause they're just giving him a clear road. I love it!' said one Trump-supporting Granite State voterMuch of Trump's appeal is based on his brand as a political outsider and say-anything style, and backers acknowledge that what drives his appeal is sometimes going to get him into troubleHe's been hammered for days over Saturday's claim that Sen. John McCain is only considered a 'war hero' because he was captured in wartime
Example Output:
But many _ backers in early-voting states argue the exchange is being overblown by the media and his opponents, who fear his sudden rise in early polls.