In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

Example Input: BOSTON, Massachusetts (CNN)  -- The operator of a trolley that rear-ended another trolley should have been able to see the other vehicle was stopped 480 feet ahead, a federal investigator said Monday. Passengers walk past firefighters at a Green Line station in Boston after the trolley collision Friday evening. The trolley driver has told investigators he was text messaging during Friday night's collision, which injured 20 people. The Massachusetts Bay Transportation Authority, which previously had banned operators from using cell phones and other portable devices, now has told employees to leave the devices at home while on duty, National Transportation Safety Board member Debbie Hersman said Monday. Hersman also noted investigators have determined that the operator may have missed some crucial indications of a stopped trolley ahead on the tracks.  Watch new transit rule on cell phones » . "There were several signals -- two green signals, a yellow signal and a red signal -- coming out of the station, and the point of collision occurred 80 feet past that red signal," Hersman said. "We did a site-distance test, and we know that the operator had the ability to see the trolley stopped in front of him 480 feet in advance of the collision." Boston officials said over the weekend that the trolley operator was using his cell phone. Numerous media outlets, including CNN's Boston affiliates, have identified the driver as 24-year-old Aiden Quinn. "The operator of the striking train was interviewed at the hospital by two detectives," said MBTA general manager Daniel Grabauskas. "He admitted that he was texting at the time of the accident." The operator told detectives that, when he looked up, "it was too late as he applied the brake and the train struck the other trolley," Grabauskas said. He described himself as "outraged." "We have reinforced for a number of years that the use of cell phones or any other kinds of electronic devices while operating a train or a bus is absolutely prohibited," Grabauskas said. Though the investigation is ongoing, he said, the two-year employee will be fired if his version of events is confirmed. None of the injuries was considered life-threatening, the MBTA said. The collision happened at 7:18 p.m. ET Friday as the Green Line trains were traveling between the Park Street and Government Center stations in downtown Boston. Both trains were traveling westbound when one train rear-ended the second, an MBTA official said. A train operator also was text messaging last year in a California train crash that killed 25 people. CNN's Rob Frehse and Gary Bender contributed to this report.
Example Output: Federal investigator says Boston trolley crashed 80 feet past a red light .
Trolley driver told investigators he was texting during wreck that injured 20 people .
Drivers already banned from using phones; authority now says keep them at home .

Example Input: (CNN) -- A shark bit a 16-year-old boy across both legs as he was surfing in Hawaii on Sunday, CNN affiliate KHON reported. The attack came four days after a shark severed the right arm of a German tourist while she was snorkeling. In the Sunday incident, the teen was surfing in Pohoiki Bay when an 8-foot gray shark attacked him, the affiliate reported. He was taken to a hospital, but his condition was not known. Authorities brought in helicopters to survey the area for sharks, but were unsuccessful. Shark found on New York subway car . Shark attack claims Brazilian teen's life . This shark attack is the fourth in the last month, and 9th for the year in Hawaii, the affiliate said. Last year, Hawaii had 11 shark attacks. While shark attacks have been on the uptick in recent years, according to the University of Florida, the fatality rate in the United States is just 2%. Discovery Channel defends dramatized shark special . Best places to swim with sharks .
Example Output: This is the fourth shark attack this month .
Hawaii has seen 9 attacks this year .

Example Input: (CNN) -- One of the most highly anticipated apps for Apple devices was made available on Wednesday. At least, until it wasn't. Google announced a Gmail app for the iPhone, iPad and iPod Touch that was designed to make it easier for the service's more than 190 million users to navigate their mail. "We check email pretty much everywhere these days," Google content manager Matthew Izatt wrote on the Gmail blog. "And when we do, we want easy access to our important messages so we can respond quickly and get back to life -- or slinging birds at thieving green pigs." Users of Apple's operating system could already access Gmail through a mobile site or set it up as their default e-mail account. But the new app promised a smoother experience with a host of new features. The tech blogosphere was delighted. "Go get the iPhone app for Gmail!" popular blogger Robert Scoble wrote on his Google+ page. Then, a few minutes passed. "UPDATE: DO NOT. The Gmail app is really a piece of crud," he wrote. "Not worth loading. Very disappointed." Google had obviously already noticed what Scoble did. Shortly after it was unveiled, the app was pulled from the Apple Store. "The iOS app we launched today contained a bug with notifications," Google posted on its Gmail Twitter account. "We have pulled the app to fix the problem. Sorry we messed up." Later, a fuller explanation was added to the original blog post. "Earlier today we launched a new Gmail app for iOS," Google posted. "Unfortunately, it contained a bug which broke notifications and caused users to see an error message when first opening the app. We've removed the app while we correct the problem, and we're working to bring you a new version soon. Everyone who's already installed the app can continue to use it." The app ... at least the fully working version of it ... will send push notifications and sound cues when new messages are received, search your inbox for an e-mail, autocomplete e-mail addresses and upload photos to messages. It will also feature the same Priority Inbox that Gmail's Web version has and add a new mobile interface that will allow users to navigate their inbox more quickly with touch controls. There was no word from Google Wednesday afternoon as to when the fixed app might be back up.
Example Output:
Gmail mobile app is released, then pulled, from Apple's online store .
The app was made available for the iPhone, iPad and iPod Touch .
Google said bugs broke the app's notification system and caused error messages .
No word on when fixed Gmail app will be released .