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 Input:
The primes are "suspicious  solitary numbers " Giordano writes. Perhaps they would prefer to be ordinary numbers  "but for some reason they couldn't do it." And he elaborates: There are some that almost touch -- 17 and 19  41 and 43 -- but are separated by an even number. As the numbers expand  these so-called twin primes become ever rarer  and the presentiment develops that these were accidents  and "that solitude is the true destiny." But then  if you count long enough  you'll find another pair of twins  "clutching each other tightly." Giordano depicts with aching vividness the traumas out of which Alice and Mattia emerge disabled. Alice's ski fall might be only that  despite a permanently crippled leg. But we get horror seen from within: a father who bullies her  even if lovingly  into enduring the cold  the awkwardness  the fear of something she has so little taste for that she humiliatingly befouls her ski pants. Adults cannot suspect what furnishes a child's nightmare; here  the reader is made to live it.
 Giordano remarkably and movingly portrays the hesitant groping toward warmth that works beneath the pair's emotional disabilities. Alice  unable to tolerate not just food but also the vitality it stands for  assumes a touchingly decisive if frail seductiveness with the shaky Mattia. When at 22 he brings himself to tell her about his sister  she embraces him  they kiss  and for a moment it seems things will change.
 Only briefly; Mattia retreats  goes off to Scandinavia. Upon his return years later there is another almost-moment. That too will vanish. Alice's reaching out  though tentative  is genuine. His response describes a parabola: rising  seeming to converge  dropping away. He is the man who fell to earth; she is earth  though crumbly.
 What is even more distinctive  and transforming  is the writing. The author works with piercing subtlety. He manages -- moving from math to physics -- an exquisite rendering of what one might call feelings at the subatomic level  emotion's muons  gluons and quarks. Take that kiss: "All Mattia saw was a shadow moving toward him. He instinctively closed his eyes and then felt Alice's hot mouth on his  her tears on his cheek  or maybe they weren't hers  and finally her hands  so light  holding his head still and catching all his thoughts and imprisoning them there  in the space that no longer existed between them."

Ex Output:
Alice


Ex Input:
LONDON (Reuters) - Manchester City âs Argentine striker Sergio Aguero  has broken a rib in a road accident in the Netherlands and will miss Saturdayâs Premier League game at Chelsea with World Cup qualifiers also doubtful.
Manager Pep Guardiola  speaking to reporters before  Aguero  had seen club doctors  said the player was definitely out of Saturdayâs game between league leaders City and champions Chelsea.
He also cast doubt on  Aguero  travelling to Argentina for World Cup qualifiers next month.
âExactly how many days he will be off  I donât know right now â he said  adding that he had âno problemâ with  Aguero  being in Amsterdam.
Soccer Football - Champions League - Manchester City vs Shakhtar Donetsk - Etihad Stadium  Manchester  Britain - September 26  2017 Manchester City's Sergio Aguero Action Images via Reuters/Lee Smith
 Aguero  had earlier posted a picture of  himself  on  his  Instagram account seated in the back of a car thanking Colombian singer Maluma  who was also in the photo  for the invitation.
City are level on 16 points with Manchester United at the top of the table with Chelsea in third place on 13  and  Aguero  is one goal away from equalling Eric Brooksâ all-time club record of 177 goals in all competitions.
The international break follows the weekendâs Premier League matches with  Aguero  in Argentinaâs squad for their last two World Cup qualifiers against Peru and Ecuador on Oct. 5 and 10.

Ex Output:
Sergio Aguero


Ex Input:
Independent Sen. Bernie Sanders  took aim at President Donald Trumpâs proposal to spend $18 billion over the next decade to extend a border wall with Mexico.
âThe American people  in fact  do not want to spend billions of dollars on a wall which Trump told us would be paid for by the Mexican government  which of course is not going to be paid for byâ Mexico   Sanders  told ABC News Chief Anchor George Stephanopoulos on âThis Weekâ Sunday.
Stephanopoulos  noting that Democrats have in the past voted to double the size of existing border fencing with Mexico  asked  Sanders  if  his  party would agree to extending the wall in exchange for protecting young immigrants under DACA  the Deferred Action for Childhood Arrivals program.
 Sanders  responded  âI don't think there's anybody who disagrees that we need strong border security. If the president wants to work with us to make sure we have strong border security  letâs do that. But the idea of spending some $18 billion on a wall that most people think will not do what he says it will do does not make any sense.â
Stephanopoulos also asked  Sanders  about  his  views of Trumpâs fitness for office in light of allegations in an explosive new book  âFire and Fury: Inside the Trump White House.â
âTax breaks for the wealthy  cutting people off of health insurance  ignoring the needs of children  not dealing with the prescription drug crisis in the country that he said he would deal with â  Sanders  said. âI worry about him being a pathological liar. Those are some of the concerns I have.â

Ex Output:

Bernie Sanders