Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: Please enable Javascript to watch this video 
  
 A new social media craze is taking over the internet. This time, kids are attempting to summon a Mexican demon named Charlie. 
  
 The Charlie Charlie Challenge surfaced Monday on Twitter and has gone viral across social media platforms. 
  
 The challenge includes putting two pencils on a piece of paper in the shape of a cross. The words “yes” and “no” are written in boxes outlined by the pencils. Then the participants say “Charlie, Charlie are you here?” 
  
 Social media users have been uploading videos “summoning” Charlie. 
  
 When social media challenges go viral, memes are to be expected. 
  
 Me when I see someone doing the #charliecharliechallenge pic.twitter.com/9BNWTB0VE4 — Best Scenes (@BestScenees) May 25, 2015 
  
 Some Twitter users have been advising others against the Charlie Challenge with warnings of demons. Users say the craze stems from “an old Mexican game” to summon a demon named Charlie. 
  
 Report a typo ||||| Story highlights The challenge has taken off on social media 
  
 It's supposed to summon demons 
  
 (CNN) Please don't kill the messenger -- or send a Mexican demon our way. 
  
 Here are the five things you need to know, with the full understanding that we are not advising you to do this, people. Do not start trying to summon spirits and blame it on us. 
  
 Come with pencils 
  
 Remember those things from elementary school? Challenge-takers are laying two of them on a piece of paper in the form of a cross (some people are probably substituting pens). They write "yes" and "no" in the four boxes formed by the cross. 
  
 Read More ||||| The internet has been gripped by a Ouija board-like game called "Charlie Charlie challenge", but its origins are not what they seem. 
  
 More than 2 million people have used the hashtag #CharlieCharlieChallenge over the past 48 hours. It's a game which involves balancing pencils over the words "yes" and "no" on a piece of paper. Players ask questions which are supposedly answered by Charlie - a mysterious demon who spookily moves the pencils, if you believe in that sort of thing. 
  
 Two days ago a Twitter user called @_kluh was one of the first to use the hashtag #CharlieCharlieChallenge. It was also made popular by a number of big social media stars in the US. But where did the game come from? Several reports and tweets claim the game's origins are in Mexico. For example, one of the most retweeted videos about Charlie Charlie Challenge, shows a popular Mexican beer brand and the Spanish words for "yes" and "no": 
  
 Image copyright @lisaaaa_sanchez 
  
 There's just one problem. The game has nothing to do with Mexican folklore. 
  
 "There's no demon called 'Charlie' in Mexico," says Maria Elena Navez of BBC Mundo. "Mexican legends often come from ancient Aztec and Maya history, or from the many beliefs that began circulating during the Spanish conquest. In Mexican mythology you can find gods with names like 'Tlaltecuhtli' or 'Tezcatlipoca' in the Nahuatl language. But if this legend began after the Spanish conquest, I'm sure it would've been called 'Carlitos' (Charlie in Spanish)." 
  
 "Mexican demons are usually American inventions," she says. 
  
 Describing the game as a traditional Mexican way to summon the dead is probably a way to make it sound mysterious or meaningful - in the same way that the Ouija board has its roots in a clever bit of 19th century American marketing rather than ancient Egypt. Another possible explanation is this YouTube video posted a year ago which shows a slightly different pencil trick. It's in Spanish, and its title translates as "Playing Charlie Charlie." 
  
 Image copyright Le Videoblog Image caption This year-old YouTube video in Spanish might explain why the 'Charlie Charlie' game is described as being 'Mexican' - even though there's little evidence that it actually is. 
  
 Blog by Mike Wendling 
  
 Next story: Can social media cause post-traumatic stress disorder? 
  
 Image copyright Getty Images 
  
 A recent study hit the headlines when it found that some social media users could develop the symptoms of post-traumatic stress disorder (PTSD) by viewing violent or disturbing content. Should we be worried? READ MORE 
  
 You can follow BBC Trending on Twitter @BBCtrending. All our stories are at bbc.com/trending ||||| What’s the Charlie Charlie Challenge and where did it come from? 
  
 The Charlie Charlie Challenge — or variants of it, known as the pencil game or Charlie pencil — has been around for some time. It’s claimed that the game is an old Mexican tradition, but there’s no trace of that on the internet, but it seems to have been around for years before it took off this week. 
  
 To play the game, grab a sheet of paper and draw two lines on it to make a cross. Put a “yes” in the top right and bottom left hand corner, and a “no” in the remaining two. 
  
 Then put a pencil right on the line going across. Balance another pencil on top of that, along the line going downwards. 
  
 To properly summon the demon, according to the game, you then have to ask “Charlie, Charlie, can we play?” 
  
 The pencils should then start moving. If they go to yes, the demon is ready and willing to answer your questions — put the pencil back, and use the same technique to get answers. If it’s a no, then you’ll have to come back later, or try again. 
  
 What’s actually moving the pencils? 
  
 Gravity, and the awkward positioning of some pencils. They just wouldn't sit still even if you wanted them to. 
  
 It’s perhaps scarier than a Ouija board because it doesn’t have the same explanations. With those boards, players have to keep hold of a glass while it moves around the table — so it’s not difficult to imagine that people might be pushing it around without knowing it. 
  
 With the Charlie Charlie game, however, nobody is actually touching the pencils. But they are still likely being pushed — the pencils have to be so finely balanced on top of each other that even the slightest movement from a breath or slightly tilted surface will push it around. 
  
 The arrangement of pencils that the game requires means that they’ll always move, because it’s just not a natural position for them to be in. 
  
 That’s why the game works reliably, to make the demon at least say no — unlike the Ouija board, it doesn’t require people to work, and so the pencils will always move if they’re aligned correctly. But if the friction of the pencils is too much, they just won't move. 
  
 If you’d like to debunk the game for yourself, try doing the same thing without the paper and without the incantation. Pencils placed on top of and across each other always move around, whether or not a demon is summoned to push them. 
  
 Why does scary stuff happen afterwards? 
  
 Afterwards, some have reported strange goings on. Those seem especially scary if people don’t chant the important words “Charlie, Charlie, can we stop?” and say goodbye when the demon says yes. 
  
 My sister did the Charlie challenge she didn't say bye to him, now her Siri keeps popping up out of no where saying pic.twitter.com/mxGdiffpxc — coz (@coral_olivia) May 26, 2015 
  
 It’s possible that strange things are happening. But it’s equally likely that after playing the game the brain gets itself into a state that makes it extra suggestible and fearful. 
  
 That’s the same thing that makes people more likely to hear strange noises when they’re on their own or in the dark. In both of those situations, people are genuinely more in danger — so the brain think itself into a special fight or flight state that makes it extra-vigilant to noises, so that those dangers can be avoided. 
  
 Who is Charlie? 
  
 As with most urban legends, the actual fact of who Charlie is seems to vary depending on who’s telling it. Some claim it is a child that took his own life, others a demonic Mexican man with black and red eyes. 
  
 The only way to really find out who he is for sure is to play the game and ask him. |||||
A:
If you've been curious about the #CharlieCharlieChallenge hashtag popping up on Twitter over the past few days, here's a warning that this is nothing like last year's Ice Bucket Challenge—though participants may scream just as loud. The game, which CNN points out could be described as "nothing but a mashup of the Ouija board and [the] 'Bloody Mary' [game]," involves summoning a supposed Mexican demon by placing two pencils in the form of a cross on a piece of paper and writing "Yes" and "No" in the alternating squares. Players then ask, "Charlie, Charlie, are you here?" (or some variant, like "Charlie, Charlie, can we play?"); if a pencil rolls toward a "Yes," players must then ask Charlie some more specific questions and see how he/she/it responds. The game has produced a plethora of videos and tweets of those partaking, ostensibly spooked by the presence of Charlie, described as both a group of Mexican demons or a single spooky entity (some say it's a child who committed suicide; others, a "demonic Mexican man with black and red eyes," per the Independent). KFOR has compiled a decent number of these photos and freakouts. But BBC Mundo reporter Maria Elena Navez says there's no demon known as "Charlie" in Mexican mythology, pointing out out that gods in old-time Mexican myths would have had names like Tlaltecuhtli or Tezcatlipoca. "If this legend began after the Spanish conquest, I'm sure it would've been called 'Carlitos' (Charlie in Spanish)," she tells the BBC. So why do the pencils move? Gravity and the "awkward positioning of some pencils," the Independent explains. (Some Mexican priests spend their time battling an "infestation of demons.")