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].

Q: The Soros-backed Best for Britain group working to overthrow the government and block Brexit is “undemocratic”  according to  founder Gina Miller .
 Miller  became well-known as an opponent of Brexit after using the Supreme Court to force the Government to seek Parliament’s approval to activate Article 50 of the Lisbon Treaty and kick off the Brexit process  which could have seen MPs vote down the will of the people.
The group is working to build a network of powerful allies to undermine the Government before it can implement the Brexit vote  and  Miller  is insisting the public has the “right to know” who is backing it as it fights the referendum result.
In her statement   Miller  slammed the lack of “transparency about key players’ motivations  agendas and activities”  and urged “those keen to play their part in the Brexit debate to be open and honest about what they stand for  whom they represent and by whom they are funded”.

A: Gina Miller
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Q: Certainly  Game 3 of the National League Division Series  won  2-1  by the Chicago Cubs over the Washington Nationals  was a kind of paradise for second-guessing. In fact  some might say the final score was: Decisions that blew up on Dusty Baker (2) over Decision that blew up on Joe Maddon (1).
Asked whether he’d heard Rizzo yelling  Baker said  “Nah  I don’t care. I’d have screamed  too.”
Soon  it was Baker’s turn. In the seventh inning with one out  Ben Zobrist broke up what had been a marvelous  downright gallant no-hit bid by Max Scherzer  who had spent the last nine days wondering whether the next time he pitched full-bore he might blow out his tight right hamstring and be done for the year. Before this game  Scherzer said he figured he would be good for maybe 100 pitches. He was at 98.
 Baker  called for Solis. The Cubs countered with the dangerous Albert Almora Jr.  who hit .342 against southpaws this year. Almora singled home the tying run on a change-up that stayed — up.
Finally  in the brutal eighth  in a decision and a moment that may be the most painful of the Nationals’ season if they do not rebound from this deficit   Baker  decided not to intentionally walk Rizzo  the Cubs’ top RBI man — by miles — and instead bring in lefty specialist Perez to cope with him. It was a journeyman-with-a-specialty against a superstar.
 Baker  had options.  He  could have walked Rizzo and let Brandon Kintzler  an all-star closer this year for the Minnesota Twins  pitch to Cubs cleanup man Willson Contreras  who is powerful but strikeout prone.  He  could even have (perhaps) overmanaged and brought in  his  best pure-stuff right-hander  Ryan Madson  to face Contreras to try to overpower  him .
Instead   Baker  believed in Perez. And  since this is baseball  Perez won the battle but lost the game. Perez jammed Rizzo  forcing that weak  sickly blooper into left field. That  anyway  is how it was described by  several Nats  including Baker . To the Cubs  it was a perfectly placed clutch hit.
For the record  as they say  with perfect hindsight  I think that  the Nats  may have managed as if the playoffs were different from the regular season — which is a current vogue. If this game had been played in August  I suspect there would have been little complexity.
And better options might have been chosen — ones that did not end up with  the Nats  losing a huge game in which neither of their two best relievers  Madson or Sean Doolittle  ever appeared.
Could that all have worked out so simply? Kintzler in the seventh  Madson in the eighth and Doolittle in the ninth to put the Nats one win from the National League Championship Series? For what it’s worth  not one Nat  and I asked several  had any problem with any Baker move. One veteran said  “We are a solid team — in every area. It’s not like we have a couple of good relievers and nobody else we trust. Our bullpen is good all the way through now. Nobody’s second-guessing those decisions.”

A: Baker
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Q: PYEONGCHANG  South Korea (AP) â  Chloe Kim  stamped  her  name on a new era of snowboarding with a run down the halfpipe that  officially  did not mean anything. To  her   it meant everything.
The Olympic gold medal was already hers but  she  knew  she  could do better. So  she  cinched on  her  gloves  cranked up "Motorsport" on  her  iPod  said "This one's for you  Grams" â a shout-out to  her  South Korean grandmother  who was watching  her  in person for the first time â and dropped into the halfpipe to make history.
On the last run of Tuesday's sun-splashed final   Kim  hit back-to-back 1080-degree spins on  her  second and third jumps â repeating a combination no other woman has ever done in a competition.
 She  landed them squarely  sent  her  already super-hyped family at the bottom into overdrive  scored a 98.5 and sent out the message that everyone from grandma to those at the roots of this sport love to hear: "I knew I wasn't going to be completely satisfied taking home the gold  but knowing that I could've done better."
The 17-year-old from California made it look easy  but only afterward did  she  concede how difficult the past several months have been.  Her  story has been told and sold and marketed for gold:  Her  parents both emigrated to the United States from South Korea  and though it was more coincidence than any grand plan   Kim  making  her  Olympic debut in the country where  her  family was from set up a sure path to stardom in the halfpipe and beyond.
 She  has commanded the progression in women's snowboarding for at least two years now  and it was hard to imagine anyone beating  her  on the sport's biggest stage  at  her  official coming-out party. But halfpipes are hard  the snow is slippery and nothing is for sure.
"There is a lot of pressure revolving around these games "  she  said. "You wait for four years to come here and it's definitely a lot of hype around a 1 1/2  2-hour time period. It's pretty nerve-wracking. You know you're at the Olympics. It's been a dream of mine since I was a little girl  to land a run that's very important for me."
 Chloe Kim  of the United States   reacts to  her  score during the women's halfpipe finals at Phoenix Snow Park at the 2018 Winter Olympics in Pyeongchang  South Korea  Tuesday  Feb. 13  2018. (AP Photo/Gregory Bull)
 Chloe Kim   of the United States  celebrates winning gold in the women's halfpipe finals at Phoenix Snow Park at the 2018 Winter Olympics in Pyeongchang  South Korea  Tuesday  Feb. 13  2018. (AP Photo/Gregory Bull)
 Kim 's journey included two years in Switzerland  where she lived with her aunt  learned French and honed her snowboarding skills.
Chloe Kim  of the United States  wipes away a tear after winning gold in the women's halfpipe finals at Phoenix Snow Park at the 2018 Winter Olympics in Pyeongchang  South Korea  Tuesday  Feb. 13  2018. (AP Photo/Lee Jin-man)

A:
Chloe Kim
****