instruction:
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].
question:
The Iranian ballistic missile launch that  President Donald Trump  tweeted about Saturday apparently never happened.
On Saturday   Trump  tweeted: âIran just test-fired a Ballistic Missile capable of reaching Israel.They are also working with North Korea.Not much of an agreement we have!â
Iran just test-fired a Ballistic Missile capable of reaching Israel.They are also working with North Korea.Not much of an agreement we have! â Donald J. Trump (@realDonaldTrump) September 23  2017
 Trump  has been criticized a number of times for jumping to conclusions and commenting on Twitter before breaking news reports have been confirmed.
As of Monday night   he  had not deleted the erroneous tweet.
Separately  Twitter Inc. TWTR  -2.30% on Monday explained that it would not block Trumpâs more incendiary tweets because they are newsworthy. Some had complained to Twitter that  his  threats toward North Korean leader Kim Jong Un â which North Korea said Monday it took as a âdeclaration of warâ â violated the companyâs terms of service.
answer:
Donald J. Trump


question:
Sep 26  2017; Jersey City  NJ  USA; U.S. Team assistant captain Tiger Woods during The Presidents Cup golf tournament at Liberty National Golf Course. Mandatory Credit: Bill Streicher-USA TODAY Sports
JERSEY CITY  New Jersey (Reuters)  - Tiger Woods  said  he  was âoptimisticâ about  his  golfing future while at the same time publicly acknowledging what has been obvious for some time  that  he  might never return to competitive golf.
The American former world number one won the last of  his  14 major titles in 2008 and the 41-year-old has only played six competitive rounds in the past two years while trying to recover from multiple back surgeries.
âYeah  definitely. I donât know what my future holds for me â  he  said on Wednesday on the eve of the Presidents Cup when asked whether there was a scenario that would not allow  him  to compete again.
âI donât know what 100 percent (healthy) means after eight surgeries  but Iâll try and get as close as I can to that number â  Woods  added.
 Woods  was peppered with questions during a news conference with his three assistant Presidents Cup captains and the four International assistants  who often looked bored at the focus stayed on the second most prolific major champion of all time.
Sep 26  2017; Jersey City  NJ  USA;  U.S. Team assistant captain Tiger Woods  during The Presidents Cup golf tournament at Liberty National Golf Course. Mandatory Credit: Bill Streicher-USA TODAY Sports
 Woods  seemed destined to become the most prolific major winner of all time when he won the 2008 U.S. Open  moving within four titles of the record of 18 held by Jack Nicklaus.
answer:
Tiger Woods


question:
In a grotto-style hall assembled for the show and decorated with fragments of mirrors   Diorâs creative director Maria Grazia Chiuri  reasserted  her  stamp on the French fashion house on the one-year anniversary of  her  arrival.
âI enjoy fashion -- thatâs what I want to say â  Chiuri  told reporters after presenting the fashion houseâs spring-summer 2018 show  in the groundâs of Parisâs Rodin Museum.
A model presents a creation by  Italian designer Maria Grazia Chiuri  as part of  her  Spring/Summer 2018 women's ready-to-wear collection show for fashion house Dior during Paris Fashion Week  France  September 26  2017.  REUTERS/Gonzalo Fuentes
Chiuri  the first female creative director at Dior   came from Valentino and presented  her  first collection last September for the label  which is part of luxury goods specialist LVMH and is celebrating  its  70th anniversary this year.
 She  has sought to send strong messages to women in  her  designs  and Tuesdayâs show opened with a model wearing a T-shirt that read: âWhy have there been no great women artists?â
answer:

Maria Grazia Chiuri