Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

Input: Consider Input: LONDON (Reuters) -  Harry Potter  is continuing to work  his  magic for publisher Bloomsbury (BLPU.L) 20 years after  his  debut  with special editions of  his  first adventure helping revenue rise 15 percent.
FILE PHOTO: Copies of the book of the play of  Harry Potter  and the Cursed Child parts One and Two are displayed at a bookstore in London  Britain July 31  2016. REUTERS/Neil Hall/File Photo
Bloomsbury released new editions of J.K. Rowling’s “ Harry Potter  and the Philosopher’s Stone” with covers dedicated to wizarding school Hogwarts’ houses Gryffindor  Slytherin  Hufflepuff and Ravenclaw to mark the anniversary in June.
 Revenue from Harry Potter  grew 40 percent in the period   the company  said on Tuesday  and the young wizard and  his  magical world will feature strongly in the publisher’s assault on the important Christmas market.
“We have a strong second-half list including the illustrated edition of ‘ Harry Potter  and the Prisoner of Azkaban ’ the illustrated edition of ‘Fantastic Beasts and Where to Find Them’ and two major books to accompany the British Library’s  Harry Potter  exhibition ” said Chief Executive Nigel Newton.
FILE PHOTO: A woman holds copies of the book of the play of  Harry Potter  and the Cursed Child parts One and Two at a bookstore in London  Britain July 31  2016. REUTERS/Neil Hall/File Photo
Analyst Steve Liechti at Investec said Bloomsbury’s second-half list looked strong  with cookery titles from Paul Hollywood  Tom Kerridge and Hugh Fearnley-Whittingstall as well as the new Harry Potter editions.

Output: Harry Potter


Input: Consider Input: Shaun White Wins Gold In Halfpipe At The Winter Olympics
Updated at 10:15 p.m.  ET
Shaun White  pulled off a gold-medal comeback in the halfpipe  and Japan's Ayumu Hirano won silver on the strength of a phenomenal second run.
CORRECTION: An early version of this story reported that  White  had won silver — that was reported after the second run had completed. On his third run   White  won gold.
 White  missed out on a medal back in 2014  when  he  was hurt at the Sochi Games.  He 's now the only snowboarder ever to win three gold medals at the Olympics. And  he  did it by winning the 100th gold medal for the U.S. Winter Olympic team.
After the Japanese snowboarder's rousing run  the pressure shifted to James and  White . James seemed to take a very deep breath before he set off on his second run. The first section was great — but he couldn't get a clean landing on one of his final tricks.  White  came out with energy and speed — but  he  fell midway through  and mustered only 55 points.
The situation reversed in the third and final run  when  White  earned a 97.75 and both of  his  top rivals fell during  their  attempts.
This is the second Olympic medal for Hirano; he won silver in Sochi. He is also the reigning X Games champion in the halfpipe  having won that title last month  in a competition that  White  skipped.
 White  led a group of four American snowboarders who qualified for the finals of the men's halfpipe at Phoenix Snow Park in Pyeongchang; joining  him  were Ben Ferguson  Chase Josey  and Jake Pates.
 Ferguson  cleaned up  his  second run after a fall in the first. And after a strong final run earned  him  a 90.75   he  finished 4th; Josey was 6th and Pates was 8th.

Output: Shaun White


Input: Consider Input: Rhetoric between President Donald Trump and North Korean leader Kim Jong Un has escalated. In response  North Korea’s foreign minister reportedly said the nation may set off the “most powerful” hydrogen bomb detonation in the Pacific. No other details were provided  but at face value  such a blast would be 1 000 times as powerful as the Hiroshima bombing. Atmospheric testing of nuclear weapons can lead to multiple dangerous scenarios.
Ri Yong Ho  the foreign minister of the isolated nation  reportedly told journalists that North Korean leader Kim Jong Un is considering such a test blast.
“It could be the most powerful detonation of an H-bomb in the Pacific ” Yong Ho told reporters at the United Nations in New York on Thursday  according to a story by South Korea’s Yonhap News Agency. “We have no idea about what actions could be taken as it will be ordered by leader Kim Jong Un.”
caption North Korean ruler Kim Jong Un stands before what may be a miniaturized thermonuclear weapon. source Thomson Reuters
The suggestion came in response to bellicose rhetoric exchanged between US President Donald Trump and  Jong Un .
In a speech before the United Nations General Assembly on Tuesday  Trump called  Jong Un  a suicidal “rocket man” and threatened to “totally destroy” North Korea if the US is “forced to defend itself or its allies.”  Jong Un  allegedly responded with a written statement  in which he called Trump a “mentally deranged US dotard” and said that “a frightened dog barks louder.”
“Trump is basically creating audience costs for  Kim  to back down ” Jeffrey Lewis  director of the East Asia Nonproliferation Program at the Middlebury Institute of International Studies at Monterey  told Vox. “If you dare  Kim   it creates pressure for  him  to respond with  his  own provocation.”
“The stakes and heat in this conflict have not been this high since the Korean War ” Tristan Webb  a senior analyst for NK News  said in a story published by the outlet on Friday. “Kim Jong Un said in July that the … showdown was entering its final phase. He appears psychologically prepared for conflict.”


Output: Kim Jong Un