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.

Input: Consider Input: (CNN)A leader of pro-Russian rebels in eastern Ukraine's Donetsk region said Friday he is not interested in a truce with the Ukrainian government in Kiev because his troops are on the offensive. "Since we're attacking, there is no sense to have peace talks now," Aleksandr Zakharchenko, leader of the self-proclaimed People's Republic of Donetsk, said in a meeting with university students, according to his media office. "We've made this mistake before. It's not decent to repeat it," he said. Thousands have been killed in months of conflict between the rebels and Ukrainian troops, and a ceasefire agreed to in September crumbled long ago. Zakharchenko's comments came two days after the foreign ministers of Ukraine and Russia met in Berlin to discuss a way out of the violence. But Zakharchenko showed no interest in the talks. "There will be no attempts from our side to talk about the ceasefire," he said, reported Russian state news agency RIA. "We will be on the offensive until we reach the border of Donetsk region." He said that he was interested in cooperating with Ukraine on prisoner exchanges. "We need to get our guys who've been captured," he said, according to RIA. Despite the talks in Berlin, violence in the breakaway Donetsk and Luhansk regions in eastern Ukraine shows no signs of abating. Power is out in and around Luhansk after militants shelled a power plant there, Luhansk regional official Hennady Moskal told Ukraine's state-run Ukrinform news agency. Moskal noted that the local water supply and boilers are off, and trolley buses aren't operating. Thursday's shelling of a transit stop in Donetsk city -- an attack that Ukraine's Defense Ministry blamed on rebels -- killed eight civilians, according to state news reports. But Ukrainian troops have come under heavy fire, as well. That includes 115 attacks in a recent 24-hour period that killed three troops and wounded 50 more, Ukrinform reported Friday. The news agency said that "Russian-terrorist troops" faced off with Ukrainian soldiers Thursday along Bakhumtka Highway, even posting a picture that showed a man with stripes on his clothing, suggesting that he was part of the Russian military. This is in line with Kiev's repeated assertions that Russia has not only actively supported rebels with arms, but has sent its own troops across the border to battle Ukrainian forces. On Wednesday, for instance, Ukrainian President Petro Poroshenko said that "more than 9,000 Russian troops (crossed) our Russian-Ukrainian border, bring with them hundreds and hundreds of tanks, armed personnel carriers, and killing Ukrainian civilians and attacking Ukrainian troops." Claims that Russian forces entered Ukraine 'complete rubbish,' Russia says . Russian Foreign Minister Sergey Lavrov promptly responded to this assertion with a firm denial, much like other denials made by Russian officials in recent months over similar allegations of armed intervention. "As to the flow of troops and armaments, this is not the first time we hear something like that," he said. "And each time I hear that, I say if you're so confident about that, please present us with facts, but no one has been able to provide us with these facts." Russian forces, equipment enter Ukraine, PM says . Pro-Russian separatists have claimed control of parts of eastern Ukraine since the spring of 2014, despite a push by Ukrainian forces to defeat them. From mid-April to January 21, the conflict had killed at least 5,086 people and injured at least 10,948 others, said the United Nations. "We fear that the real figure may be considerably higher,"  the Office of the U.N. High Commissioner for Human Rights said about the death toll in a report released Friday. At least 262 people were killed in the fighting from January 13 through Wednesday alone, the report said. Unrest in Ukraine began with protests in the country's capital last year after President Viktor Yanukovych, favoring closer ties to Russia, dropped plans to sign a political and economic agreement with the European Union. After months of protests and days of deadly clashes between demonstrators and security personnel in Kiev, Parliament ousted Yanukovych in February. Weeks later, Russia annexed the Crimean Peninsula. Then in April, violence broke out in two Ukrainian regions that border Russia -- Donetsk and Luhansk -- as separatist leaders declared independence from the government in Kiev.

Output: Aleksandr Zakharchenko: No sense in talking peace since we're on the offensive .
Zakharchenko is the leader of rebels in eastern Ukraine's Donetsk region .
He says he still wants prisoner exchanges .


Input: Consider Input: (CNN) -- The 2013 tennis season may only be in its fledgling stages but already the heat is well and truly on for those preparing for the year's first major. As the great and good on the men's and women's circuits fine tune their game ahead of the Australian Open that starts in Melbourne on Monday, they are having to contend with stifling temperatures in Sydney. According to the Australia Bureau of Meteorology, Monday was the hottest day in the country since records began over 100 years ago with an average temperature of 40.3 degrees. Officials in New South Wales have warned of a "catastrophic" fire threat as strong winds combine with the heat to increase the danger of bushfires spreading out of control. Players had to battle heat that reached 41.4 deg in Sydney, with world No. 4 Agnieszka Radwanska claiming it was "too hot" to play and that officials should have halted proceedings under their extreme heat policy. But the Pole, along with the other players scheduled on Tuesday, battled through the searing sunshine with the help of regular breaks, ice towels and gallons of liquid. "I think this is too hot to play tennis," Radwanska told reporters at a press conference. "Even for players, for ball kids, for even the people sitting out there, I think it's just too hot." One saving grace for Radwanska was her quick 6-4 6-3 victory over Japan's Kimiko Date-Krumm which meant she was only on court for 68 minutes. Russia's Svetlana Kuznetsova battled through to a 7-6 1-6 6-2 victory over former world No. 1 Caroline Wozniacki, though both players benefited from a heat break before contesting the deciding set. Kuznetsova told reporters: "I think it shows you one more time how tough the tennis is right now. How players have to be fit to play in the hot conditions, the windy conditions. We're like iron women almost. "It was very hot out there. In the second set the heat definitely disturbed me a lot. But the break really helped me before the third set." The 2011 French Open champion, Li Na of China, was quoted as saying by AFP that she felt like she was "playing in a sauna." Germany's Angelique Kerber triumphed 6-2 7-5 over Russian qualifier Galina Voskoboeva who took a medical time out because of the extreme heat. Kerber: "It was unbelievably hot. Usually I practice before my matches, 30 to 35 minutes, today it was just 10 or 15 minutes because I couldn't play more. It's tough to play in these conditions. "I was trying to focus on the next point and not thinking about the heat, the sun and the weather. The whole match was tough from the first point. I'm happy I won in two sets." Temperatures were due to cool off for Wednesday's play but by the end of the week the thermometer will be back up to 37 degrees in Melbourne, according to Jenny Harrison from the CNN Weather Center. She told CNN's World Sport show: "We do see this every couple of years but this is record-breaking heat. Monday has been confirmed as the hottest day across Australia since records began. "It looks as if Tuesday, once we get the stats in, could be the hottest day and outdo Monday. "What has happened in the last few hours is a front has come through across the south east of Australia. In literally an hour the temperature in Sydney has dropped more than 10 degrees. "Melbourne is cooler than that as the front went through there first. But in Melbourne by the end of the week the temperature is going to rise again, getting well above average."

Output: Record temperatures hit Australia during tennis tournament in Sydney .
Stifling heat of 41.4 degrees make conditions uncomfortable for players .
World No. 4 Agnieszka Radwanska claims it was "too hot" to play .
Monday confirmed by Australia Bureau of Meteorology as hottest since records began .


Input: Consider Input: NEW YORK (CNN) -- Most New Yorkers and visitors to Times Square know of The Naked Cowboy. The Naked Cowboy is part of the scenery at New York City's Times Square. For the past 10 years, he's the guy you've seen on the sidewalk, with the great body, strumming his guitar and singing, dressed in a cowboy hat, cowboy boots and underwear -- and nothing else, even in the dead of winter. As a native New Yorker, I will admit that at times, it has been my guilty pleasure to walk or drive by The Cowboy to see if he can bear the elements. To my amazement, he's always there and pretty naked -- in rain, sleet, snow, heat or bitter cold. I've even taken pictures.  Watch The Naked Cowboy in his natural habitat » . Well, it seems that Mars Inc., the makers of M&Ms, also knows about Robert Burck (The Cowboy's real name). Burck sued Mars this week for $6 million in federal court in New York. The allegations: trademark infringement under the Lanham Act and violation of his right of publicity under New York Civil Rights Law §51, arising from a video billboard for M&Ms. The video ad depicts an M&M frolicking around New York, in what kind of looks like Times Square, in what kind of looks like The Naked Cowboy's outfit -- briefs and nothing more than a smile. There have been plenty of jokes about the lawsuit, and I'm especially fond of the ones found on The Wall Street Journal Law Blog on Thursday, such as: . All jokes aside, I think he may have a case. In order for him to show trademark infringement, The Naked Cowboy has to be trademarked; has to prove that Mars, without his consent, infringed upon the trademark; and has to show there's a "likelihood of confusion" between his trademark and the allegedly infringing mark -- in this case the naked M&M. To state a claim under New York's civil rights law, Burck has to show that Mars used his name, portrait or picture for purposes of trade or advertising, and without his written consent. Surprising to some -- at least to me -- The Naked Cowboy's name and likeness are in fact registered trademarks owned by Burck. According to the complaint, Burck has licensed The Naked Cowboy name and/or likeness to companies for the purposes of advertising and endorsement. Mars, Inc., had no immediate comment. His character is part of the USA Network's "Characters Welcome" campaign; he appeared in a music video for the song "Rockstar" by the multiplatinum artist Nickelback; and he's featured singing in the video game "True Crime: New York City at Times Square." He also has appeared in several movies and television programs, including "Starship Dave," "Survive This," "Mulva: Zombie A** Kicker," "Steve Harvey's Big Time," "New York Minute," "Creature Feature," "Lonely Planet," "Troma's Edge," "American Icon" and "The Howard Stern Show." He even appeared in a Chevrolet commercial that debuted during Super Bowl XLI. And this isn't the first time a pseudo-celebrity (sorry Cowboy) has sued and won. Remember Vanna White? She was awarded $403,000 when Samsung used a robot, wearing a blond wig, jewelry and a dress, that turned letters on a game board similar to White's role on "Wheel of Fortune," the TV game show. Still laughing? I'm not. At the end of the day, this lawsuit may be the end of the era of the "naked" cowboy. I predict he will be able to afford some very nice duds. E-mail to a friend .


Output: The Naked Cowboy, aka Robert Burck, registered his trademark .
He has filed a federal lawsuit against Mars Inc., the maker of M&Ms .
His suit seeks $6 million .