Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: Tweet with a location 
  
 You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more ||||| MAE SAI, Thailand — As the world watched rescuers struggle to save 12 boys and their soccer coach trapped in a cave in northern Thailand, the tech billionaire Elon Musk dreamed up a “kid-size” submarine to help. It turns out they didn’t need it. 
  
 So he left it there, “in case it may be useful in the future,” he said on Twitter. 
  
 By Tuesday, the rescue operation had succeeded in saving all 13 people trapped in the Tham Luang Cave. Earlier this week, eight of the soccer teammates were evacuated from the flooded cave, a mission that required guiding the boys through passageways filled with water. 
  
 [Update: The Thai Navy may have a use for the abandoned mini-submarine.] 
  
 It was a daunting task. On Friday, a former Thai Navy SEAL lost consciousness and died while placing air canisters on a route within the cave being used in the rescue effort. 
  
 Once the last four boys, their soccer coach and military personnel were evacuated Tuesday, Thai officials said in a Facebook post that the mission was complete. It had taken 18 days, dozens of divers and hundreds of volunteers, but Mr. Musk’s mini-submarine invention was left on the sidelines, a Thai official said. ||||| The former Thai provincial governor (described inaccurately as “rescue chief”) is not the subject matter expert. That would be Dick Stanton, who co-led the dive rescue team. This is our direct correspondence:pic.twitter.com/dmC9l3jiZR ||||| Tweet with a location 
  
 You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more |||||
Student:
An 18-day mission to save 12 boys and a soccer coach trapped in a Thai cave succeeded without Elon Musk's mini-submersible, which was deemed unsuitable and left behind in the Tham Luang cave complex. It's "a reminder that sometimes this tech superhero doesn't quite match up to the Iron Man of his fans' dreams," says the BBC's Rory Cellan-Jones. Musk begs to differ. After rescue head Narongsak Osottanakorn said Musk's kid-sized sub built from rocket parts was "not practical for our mission," the billionaire SpaceX founder took to Twitter to question Osottanakorn's expertise. He "is not the subject matter expert," Musk tweeted Tuesday, sharing a July 7 email from a rescue diver, per the New York Times. It asks Musk to "please keep working on the capsule details." A spokesman for the diver said Tuesday that cave passages were too narrow for the sub, but "based on extensive cave video review & discussion with several divers who know journey, SpaceX engineering is absolutely certain that mini-sub can do entire journey & demonstrate at any time," Musk continued, adding he left the sub behind "in case it may be useful in the future." Aaron Mak at Slate gives him some credit. "Musk's involvement, though ultimately unnecessary, appears to have been well-intended and did not impede the operation," he writes. You can't fault a guy for trying, adds Bryan Clark at The Next Web. "Musk delivered a working submersible in around 30 hours in an attempt to solve a very real problem, a problem that undoubtedly costs hundreds of thousands of his own money in materials, research, and man hours," he says, deeming the effort "worthy of praise."