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: Sam Nunberg  a former campaign aide to Donald Trump   said early in Trump's presidential campaign   he  was instructed to help candidate Trump understand the U.S. Constitution.
 Nunberg  made the comments in "Fire and Fury: Inside the Trump White House " a book by journalist Michael Wolff.
"I got as far as the Fourth Amendment before  his  finger is pulling down on  his  lip and  his  eyes are rolling back in  his  head  " Nunberg  said in the book.
 Nunberg  was fired two months after Trump launched  his  presidential campaign  the Washington Examiner reported.
Example Output: Sam Nunberg

Example Input: LONDON (Reuters) -  When Comcast (CMCSA.O) boss Brian Roberts  was weighing up a $31 billion offer for British broadcaster Sky (SKYB.L)  a trip to see Skyâs products in store  and the knowledge of the London cab driver that took  him  there  helped to make up  his  mind.
 Chief Executive Roberts  said the visit was one of a number of things that confirmed Sky as a âjewelâ that his company should try to acquire  as Comcast looks to boost international revenues as growth in the United States slows.
 Roberts  said  he  had closely tracked what Sky had been doing for years  but last November   he  had an unexpected reminder of Skyâs influence as Europeanâs biggest pay-TV provider while in a cab with a colleague.
âI suggested that we jump in a taxi and go to one of the malls and get a demo of Sky in one of their shops. And we had a fabulous experience â  Roberts  told reporters on a call.
 Roberts  said that while the experience wasnât the deciding factor in moving forward with the bid  it reiterated the media groupâs value to the chief executive.
Example Output: Brian Roberts

Example Input: "Time for us to get a couple bounces I think "  Wagner  said  as Anaheim scored four goals in a period for first time since doing it in the third period at Buffalo last Feb. 9.
 Chris Wagner  and Ondrej Kase also scored for Anaheim in the middle period  and Hampus Lindholm added an empty-netter in the final second of the game. John Gibson stopped 30 shots to help the Ducks improve to 7-3-1 in their last 11 games.
 Wagner  scored on a short-handed breakaway to make it 3-1 at 9:24  notching the third special-teams goal of  his  career  all of which have come this season.
"I think they take chances and they play run-and-gun  so you're going to get your chances. Tonight we buried a good amount of them and that's what got us the W  " Wagner  said.
 Anaheim Ducks' Chris Wagner  celebrates  his  goal against the Pittsburgh Penguins during the second period of an NHL hockey game Wednesday  Jan. 17  2018  in Anaheim  Calif. (AP Photo/Jae C. Hong)
Example Output:
Wagner Wagner