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].

Example 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.
Example Output: Harry Potter

Example Input: Bay Area political events : Bernie Sanders , no-hate march . 
Bernie Sanders : Sen. Bernie Sanders , independent-Vt. , speaks at a California Nurses Association-sponsored rally in favor of a single-payer health care system . 
Fifteen Senate Democrats are flirting with a ... more Photo : Andrew Harrer , Bloomberg Bay Area political events : Bernie Sanders , no-hate march 1  1 Back to Gallery .
Example Output: Bernie Sanders

Example Input: On a whim  Michael Simon sprinted off to Hungary after finishing business school in St. Louis. Twenty years later  he has carved out an unusual niche as perhaps Hungary's most successful software entrepreneur.
 Simon's latest creation to bubble out of Budapest is LogMeIn  a 400-worker outfit that makes software that allows one computing device to take control of another. Using this technology  a person can tap into a home or office PC while on the road with a laptop. Customer support technicians also use LogMeIn's products to take control of people's machines and fix their PC problems.
 Simon's Hungarian tale started in 1992 after he finished business school at Washington University. While pursuing an internship  an opportunity popped up in Budapest.
 "I bought the Lonely Planet guide to Eastern Europe on a shoestring " Simon recalled. "It described Budapest as the Paris of Eastern Europe  and I thought  'That sounds good."'
 In Budapest  Simon discovered a wealth of smart engineers fresh out of school and hungry for opportunities -- for relatively modest wages.
 He ended up running a software firm that contracted with companies outsourcing their engineering work. Then in 1995 he founded Uproar  a software company that built Web versions of games like Family Feud and bingo.
 Simon kept in touch with the engineering team that had managed to make the most of limited computing power and turned to them again when Marton Anka  a Hungarian software engineer  approached him with the remote access software he had been selling out of his apartment.
 A closely held piece of technology  nicknamed Gravity  lets the company handle all these connections at a lower cost than other companies can  Simon said.
 "You can think of Gravity as sort of a connectomatic " he said. "We can serve hundreds of millions of devices from an extraordinarily small number of computers."
Example Output:
Michael Simon