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].

[EX Q]: Leading up to the Olympic figure skating menâs event   Nathan Chen  was a gold medal favorite.  Chen âs teammate Adam Rippon  who does not perform some of the more difficult jumps that  Chen  does  wasnât considered a true threat for a medal in the olympic skating menâs event  but managed to endear  himself  to the world with  his  exuberant â and clean â skate.
Now Rippon sits ahead of  Chen  after the Olympic figure skating menâs short program. Ripponâs error-free skate  albeit minus the quad jumps  landed  him  in seventh place while teammate Vincent Zhou is in 12th.  Chen   who made mistakes on all of  his  jumps  is currently 17th. That means  he  will skate in the second group of six skaters in the free program tomorrow  since the skating order is reversed from the rankings after the short program.
 Chen   who is competing in  his  first Olympics  is having a tough time so far. First there was his error-filled short program in the team skating event earlier this week  in which he botched all of his jumps. Then he did the same in the menâs short program.
 Chen âs arsenal of quadruple jumps sets  him  apart from most of the competition; quadruple jumps are worth far more in points than triples are  and itâs easy for  Chen  to add up points and pull away from the field â if  he  lands them cleanly.
The disastrous short program prompted tweets of encouragement for  Chen   including from Olympian Scott Hamilton. âI respect you. I admire you. I believe in you. Today was a difficult day. Tomorrow is up to you!â
But even if  Chen  skates a dazzling long program peppered with multiple quad jumps  itâs numerically impossible for  him  to climb from 17th place into medal contention â unless most of  his  higher-ranking competitors all come down with the norovirus. âIâve never been in this position before so I donât really know exactly what to do â  he  says.
Even before the menâs short began  Olympian and silver medalist Paul Wylie questioned the fluidity and uncertainty of so much of todayâs Olympic athletesâ schedules.  Chen  has said  he  regularly changes the elements of  his  program  switching jumps depending on how  he  is feeling and whether  he  needs to perform the more challenging ones to game a competition. âI am not a fan of the ultra fluidity of the planned program content â Wylie said. â Nathan  is dealing with a lot of variables. The other variable is  Nathan  is always talking about  his  boots;  he âs got three different pairs of boots. And  he  has been going away [from Gangneung] to practice. So  he âs thinking  where am I practicing today. Iâm not sure those question marks are really what you need in the Olympics.â
Maybe what  Chen  needs is some of teammate Ripponâs infectious exuberance. âIâm able to go out in the individual menâs event and show the world I am a cutthroat competitor and that Iâm an awesome skater â Rippon says. âAnd I want to show why everyone should be involved in skating because it is something that has brought me so much joy  and can bring a lot of other people a lot of joy as well.â
[EX A]: Nathan Chen

[EX Q]: "Visitors from infected countries should wear masks. It's a precautionary measure we're taking to avoid human-to-human transmission of the virus " Health Minister Siti Fadilah Supari told AFP.
 But the minister said the government had no intention of enforcing the precaution  which could do serious damage to the country's stuttering tourism industry.
 "There'll be no penalty if people don't wear them. You can't expect people to wear masks when they're swimming " Supari said  adding the masks would be handed out to visitors as soon as possible depending on funding.
 Supari said last week she was particularly worried about Australian tourists who flock to the famous surf beaches of Bali island. More than 300 000 Australian holiday-makers visited the island last year.
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[EX A]: Siti Fadilah Supari

[EX Q]: Former Pennsylvania Sen. Rick Santorum told Breitbart News Daily host Raheem Kassam on Monday  “Anyone who votes again this bill ” referring to the Graham-Cassidy Obamacare repeal bill  “and says  ‘I’m still for repealing Obamacare ’ they’re a liar because they had a chance to repeal Obamacare  and they didn’t.”
 Santorum  also went into detail on recent changes to the bill to gain more support  arguing that any alleged addition of money to sway some senators is a minor issue  at best.  He  said the adjustments were simply to ensure that if Washington is going to block grant the Obamacare money  it needs to do so proportionately and fairly. That is what any last-minute changes are meant to bring about.
 He  also cited welfare reform under Bill Clinton as an instance of successful government reform of a major program  while pointing out that the Graham-Cassidy Obamacare repeal is the first real effort to take on Obamacare.  Santorum  said all previous votes to repeal Obamacare were actually “fake” votes  as it was known the bills being voted upon never had a chance of becoming law.
 Santorum  also said that Graham-Cassidy will get enough votes in the House if the Senate passes it  making it the first and only legitimate effort to repeal Obamacare.
[EX A]:
Rick Santorum