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: Watch CBN News' Heather Sells interview with  Sadie Robertson  about  her  latest book and what's next for  her .
 Sadie Robertson  is well known for  her  captivating smile and role in the reality TV series "Duck Dynasty"
The show ended last year but the 20 year-old continues to make a name for  herself .  She  has acted in God's Not Dead 2  danced  her  way to first runner up on Dancing with the Stars  and continues to inspire fans and share  her  faith on YouTube.
Now  she 's traveling the world and sharing how  she  learned how to conquer fear in  her  new book  "Live Fearless."
"I used to live in a lot of fear. I had a lot of anxiety and really dealt with panic attacks - the whole nine yards. Anything fear  I was totally living in it. It was actually in the season of my life when I was very  very public  " Robertson  told CBN News. " I don't feel like people were really seeing the fullness of who I was because I was so afraid."
Despite  Robertson 's life being so public   she  was engaged in a very private war against fear for years until  she  learned how to beat it.
"Finally  I found freedom through my faith and totally over fear. All of a sudden  I become a totally different person. I start speaking all of a sudden. I'm a lot more confident in what I'm saying. I have a lot more life  more joy-filled  and people started to see the change in me "  she  said.
 Robertson  says one of the biggest ways to fight anxiety is to take every fearful thought into captivity.
"You can be in like  literally  a room where there's no fear around you but because your mind is so consumed with fearful thoughts. It's really a mind thing. And so  really finding freedom and captivating the thoughts of your mind is a huge way out of it "  she  shared.
 Robertson  wrote this book for anyone who struggles with fear like  she  did.
 Robertson 's life hasn't shown any signs of slowing down since  she  wrote  her  book.  She  recently completed  her  "Live Original Tour" which brings thousands of young people together to worship God and learn how to live as He created them to be.
Example Output: Sadie Robertson

Example Input: We know that  Nikolas Cruz  wasn't hiding a thing about  his  killing rage in the months and even years before the Florida school massacre.
According to the best British newspaper in America  the Daily Mail   Nikolas Cruz  abused his ex and sold knives out of a lunchbox.  He  was disciplined by the school 25 times and finally expelled.
Good Morning America could not pass up an interview with survivor Ariana Lopez. In her circle  everybody knew that  Cruz  was dangerous.  He  didn't bother to hide it. According to  Ms. Lopez  Cruz  was signaling  his  rage and murderous feelings like mad.
Lopez made it clear during her interview that  Cruz 's problematic behavior and mental health issues were on clear display at school. 'He used to sell knives out of his lunch box  which I thought was insane. You can't have knives  this is a school'  said Lopez of  Cruz . 'He would be like  "hey guys  want some knives?"' One of the incidents that led to his being disciplined was a fight in September 2016. Footage of the brawl emerged over the weekend.  Cruz  was suspended for two days as a result of the fight  which was over a former girlfriend.
This changes the picture completely: what the hell were the school counselors and police authorities doing while  Cruz  was signaling murderous intentions? There is an air of looming tragedy over the Florida school killings  and secretly  many people knew or suspected what was to come.
Any competent teacher  administrator  school cop  or counselor should have seen the signs and should have diverted  Cruz  into a protected environment where  he  could be educated and monitored. If  his  friend Ariana knew he was selling knives  so did dozens of other kids  teachers  administrators  and all the rest. No person in authority acted responsibly. They just kicked the can down the road.
There is no mystery about the Nikolas Cruzes of the world. They have been around forever. It's just that they were spotted and taken care of with discipline and  yes  with love and acceptance  whether they deserved it or not. If they acted out  they were punished appropriately  and if they looked dangerous  they were diverted to activities where they could do no harm.
That's what fathering is all about  and that is what the ancient phrase "in loco parentis" means.  Cruz  should have been effectively disciplined from childhood onward  but  he  was allowed to grow into a raging menace  recognized by other students and by numerous adults.
Example Output: Nikolas Cruzes

Example Input: "We've had an inkling that subconcussive hits â the ones that don't [show] neurological signs and symptoms â may be associated with CTE " says Dr. Lee Goldstein  an associate professor of psychiatry at the Boston University School of Medicine and the lead investigator on the study. "We now have solid scientific evidence to say that is so."
"It took us many years to do this "  Goldstein  says. "We see in our animals â even after a small number of hits  even one â very early evidence of pathologies associated with CTE."
And  they noted  the brain pathology was unrelated to signs of concussion in the mice  such as altered arousal and impaired balance.  Goldstein  says the scientists nailed what they wanted to â strong evidence linking head impact to CTE  independent of concussion.
"I want to be very clear on  this " Goldstein  says. "This is in no way to minimize concussions."
Both Bailes and  Goldstein  are a big part of that evolution. Right now  CTE can only be diagnosed after death  but both scientists are working  independently of each other  on a test intended to detect CTE in living brains. Such a test would help determine how widespread the disease is and  beyond that  how to develop treatment.
In the meantime   Goldstein  hopes  his  study finds applications not just in football  but in other sports  like soccer and lacrosse  where contact and collisions include hits to the head.
And beyond sports   Goldstein  says  hits to the head affect the most vulnerable segments of society.  He  has a long list.
"Intimate partners who are having repetitive head injuries "  he  notes " domestic violence victims  homeless  children at risk  people in our prison systems. [With] all of these people  we need to take the focus off concussion and find out if they have injured brains."
Example Output:
Lee Goldstein