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].

Input: Consider Input: The heir to Saudi Arabiaâs throne has accused  Iran  of âdirect military aggressionâ which could be an âact of war â after Saudi air defense forces intercepted a ballistic missile on Saturday fired toward the capital  Riyadh  from across the border in Yemen.
Yemen has been embroiled in a civil war since 2015 between a Saudi-led military coalition in support of the Yemeni government  and Houthi rebels believed to be funded by  Iran .
âThe involvement of  Iran  in supplying missiles to the Houthis is a direct military aggression by the Iranian regime â the Saudi news agency SPA reported  Crown Prince Mohammed Bin Salman  as saying on Monday  âand may be considered an act of war against the Kingdom.â The language closely matched a statement earlier given by the Saudi-led coalition.
 Iran  immediately denied  it  was behind the missile launch.
The head of the Saudi military coalition said that experts in military technology had examined other missiles and âconfirmed the role of  Iran âs regime in manufacturing these missiles and smuggling them to the Houthi militias in Yemen for the purpose of attacking the Kingdom  its people  and vital interests.â
 The crown princeâs  reported remarks mark a new height in tensions between  Iran  and Saudi Arabia  the regionâs rival powers. The civil war in Yemen is widely seen to be a proxy war between the two countries  and has resulted in the deaths of over 10 000 civilians and triggered a humanitarian disaster including a cholera outbreak which has infected nearly a million people.

Output: Mohammed Bin Salman


Input: Consider 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.

Output: Nikolas Cruzes


Input: Consider Input: YANGON (Reuters) - Thousands of Catholics gathered in Yangon on Monday after journeys by train and bus  excited to get a glimpse of  Pope Francis   who begins a trip to Myanmar fraught with diplomatic risk over its treatment of the minority Muslim Rohingya people.
Women from Kachin State wait outside the residence of Cardinal Charles Maung Bo  Archbishop of Yangon  where  Pope Francis  will be staying during  his  visit in Yangon  Myanmar November 27  2017. REUTERS/Jorge Silva
â He  is very knowledgeable when it comes to political affairs.  He  will handle the issue smartly â  he  said  referring to the delicacy of the popeâs discussions about the Rohingya.
The trip is so delicate that some papal advisers have warned  him  against even saying the word âRohingyaâ  lest  he  set off a diplomatic incident that could turn the Buddhist-majority countryâs military and government against minority Christians.
This poses a dilemma for  Francis  as  he  visits a country of 51 million people where only about 700 000 are Roman Catholics.
People wait outside the residence of Cardinal Charles Maung Bo  Archbishop of Yangon  where  Pope Francis  will be staying during  his  visit in Yangon  Myanmar November 27  2017. REUTERS/Jorge Silva
âSOMEONE SHOULD HAVE TALKED  HIM  OUT OF ITâ
The most tense moments of  his  visit are likely to be private meetings with the army chief  Senior General Min Aung Hlaing and  separately  civilian leader Aung San Suu Kyi.
 Francis  will also visit Bangladesh during  his  Nov. 26-Dec. 2 trip  where  he  is expected to meet Rohingya refugees.
More than 150 000 people have registered for a mass that  Francis  will say in Yangon on Wednesday  according to Catholic Myanmar Church spokesman Mariano Soe Naing.
Asked if he would say it in Myanmar  Vatican spokesman Greg Burke said  Francis  was taking the advice  he  had been given seriously  but added: âWe will find out together during the trip ... it is not a forbidden wordâ.


Output: Pope Francis