Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:Image copyright Reuters Image caption Daniel Kristensen with debris from the wreck of the World War Two aircraft 
  
 When Klaus Kristiansen tried to bring his son's history homework to life, he probably wasn't expecting the boy to unearth a buried World War Two warplane. 
  
 Or for excited TV crews, forensic police and explosives experts to descend on his family's farm in Birkelse, Denmark. 
  
 But that's exactly what happened when 14-year-old Daniel Rom Kristiansen found the remains of a German Messerschmitt plane, and its pilot, in an unremarkable field. 
  
 According to Mr Kristiansen, his grandfather once told him that a plane had crashed there in November 1944. 
  
 He told Danish news station DR P4 Nordjylland: "When my son Daniel was recently given homework about World War Two, I jokingly told him to go out and find the plane that is supposed to have crashed out in the field." 
  
 Father and son joined forces with a metal detector, but never expected to find anything. 
  
 Mr Kristiansen, an agricultural worker, believed the wreckage had been removed years before. 
  
 But then, a telltale beeping on a patch of boggy ground. 
  
 The pair began digging, but realised they needed to go deeper. 
  
 They borrowed an excavator from a neighbour, and around four to six metres down, the plane's carcass began to reveal itself. 
  
 Image copyright Scanpix Denmark/Henning Bagger via Reuters Image caption The field where the wreckage came to light 
  
 Their haul included an engine from the Bf 109 Messerschmitt plane, Luftwaffe munitions, and the bones of a crew member who died in the crash. 
  
 "In the first moment it was not a plane," Mr Kristiansen told the BBC. "It was maybe 2,000 - 5,000 pieces of a plane. And we found a motor... then suddenly we found parts of bones, and parts from [the pilot's] clothes. 
  
 "And then we found some personal things - books, a wallet with money... Either it was a little Bible or it was Mein Kampf - a book in his pocket. We didn't touch it, we just put it in some bags. A museum is now taking care of it. I think there's a lot of information in those papers." 
  
 Realising they had found something extraordinary, the farmer contacted World War Two historians and the Danish authorities. 
  
 Mr Kristiansen said the field was being used "for grass, or cattle". 
  
 His family has worked on the land where the plane was concealed for decades, oblivious to its secrets. He himself has lived there for 40 years. 
  
 "We had never seen anything on the surface," he says simply. "Not a single bit of metal. 
  
 "He was telling a lot of stories, my grandfather. Some of them were not true, and some of them were true - but this one was true. Maybe I should have listened to him a bit more when he was alive!" 
  
 North Jutland Police have now closed the crash site for investigation. 
  
 As ammunition was found with the plane, bomb disposal experts are on hand to remove it safely. 
  
 Forensic police are working to recover the dead airman's remains, and hope to identify him in due course. 
  
 "Probably there is a pilot who will be buried now in Germany," Mr Kristiansen says. "I would hope so." 
  
 As for Daniel... he has handed in his history homework, but hopes to update it when the details of the stricken plane - and the man who fell with it - come to light at last. ||||| The North Jutland field where the crashed WW2 plane was found. Photo: Henning Bagger/Scanpix 
  
 A boy in the North Jutland town of Birkelse made an unexpected discovery when doing his history homework. 
  
 Daniel Rom Kristiansen uncovered the wreckage - as well as the remains of the pilot - after being told by his father to ‘go out and find the plane that is supposed to have crashed in the field’. 
  
 Klaus Kristiansen told local news station DR P4 Nordjylland that his grandfather once mentioned that a German plane had crashed in the fields behind their farm during the Second World War. 
  
 “When my son Daniel was recently given homework about World War II, I jokingly told him to go out and find the plane that is supposed to have crashed out in the field,” said agricultural worker Kristiansen. 
  
 The schoolboy and his dad promptly headed into the fields with a metal detector - initially just for fun, since Kristiansen believed that the wreckage had long since been removed. 
  
 But the pair then began finding bits of wreckage. 
  
 “We tried carefully digging with a trencher. More and more parts came up and the further we went, the more we found,” Kristiansen said to DR. 
  
 After the amateur excavation turned up the remains of bones, the authorities were called, reports broadcaster DR. 
  
 Police, bomb disposal experts and even German embassy representatives all arrived at the scene. 
  
 “We also found documents and papers in the pockets of some clothes,” Kristiansen explained. 
  
 The father and son that discovered the aircraft. Photo: Henning Bagger/Scanpix 
  
 The aircraft discovered by the Kristiansens is a Messerschmidt Bf 109, a model used in large numbers by the Luftwaffe during World War II. 
  
 Kristiansen told DR that his family had worked on the land where the fighter plane was found for “20-30 years” without have any idea of the secret under the ground. 
  
 “Luckily my son has something to write about in his assignment now. He’s actually been given the day off school today so that he can watch the police and bomb disposal people working. It’s quite exciting for all of us,” said Kristiansen. |||||
Solution:
Young boys tend not to forget fantastical stories told by their grandpas, especially if those stories involve downed World War II fighter planes. Klaus Kristiansen of Denmark apparently couldn't get the tale his own grandfather had told him out of his head—that an aircraft had crashed behind their Birkelse farm in 1944—and so when his son had a history homework assignment, he jokingly told the boy to "go out and find the plane that is supposed to have crashed," reports DR P4 Nordjylland, via the Local. But what 14-year-old Daniel Rom Kristiansen turned up in a nearby field was no joke: the remnants of a German Messerschmitt plane, as well as the remains of its pilot, the BBC reports. Dad and son had headed out with a metal detector, and when the device started beeping, they borrowed an excavator and began digging deep into the earth. Starting at around 13 feet down, they started turning up pieces of the wreckage of the Bf 109 model. Kristiansen says they found "maybe 2,000 [to] 5,000 pieces" of the plane, books, a wallet with some cash, papers—and then bone fragments and pieces of human clothing. He says he's lived on the property for decades and had never seen "a single bit of metal." The two called authorities, and the site has been roped off. Forensics experts are hoping to identify the body. "Luckily my son has something to write about in his assignment now," Kristiansen tells DR. (A WWII pilot was found 13 feet underground, in his plane, in Italy.)