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: Two recent books look at the very human (sometimes all-too-human) process of trying to make sense of the known universe:  The Un-Discovered Islands: An Archipelago of Myths and Mysteries  Phantoms and Fakes  by Malachy Tallack  and The Planet Factory: Exoplanets and the Search for a Second Earth  by Elizabeth Tasker .  They 're so stylistically and scientifically disparate as to seem unrelated  but reading  them  in close succession makes for something greater than the sum of its parts â a joint atlas of human guesses in a world that seems destined to confound us.
 Elizabeth Tasker  knows all about that; The Planet Factory is all about the formation of worlds humanity might never clap eyes on. And if you're hoping for definitive answers about how things work closer to home  think again;  Tasker 's very clear that the scientific method is as often about being proven wrong. "The problem (and there is always a problem)" isn't just an aside on a particular theory  but a thesis for the field. This is a book about trying to map unknown seas in real time; the ghosts of the sailors peering into the dawn looking for Thule live in every telescopic survey.
The Planet Factory can feel intimidating; certainly you must come to it wanting to know everything there is to know about making planets  and hang in there as long as you can before the variables overwhelm you. ( Tasker  offers easy analogies by the handful  and while at first they may seem too easy  you'll appreciate them by the time you're trying to understand the optimum timing of planetary migration.)
The Planet Factory Exoplanets and the Search for a Second Earth by Elizabeth Tasker Hardcover  336 pages   purchase close overlay Buy Featured Book Your purchase helps support NPR programming. How?

Output: Elizabeth Tasker


Input: Consider Input: CAIRO (Reuters) - To Hisham Genena  the assault appeared well-timed. Egypt’s former anti-graft chief was on his way to appeal against the disqualification of President Abdel Fattah al-Sisi’s strongest potential challenger in an upcoming presidential vote.
 Sisi ’s office referred questions to the electoral commission.
 Sisi  faces a single opponent in the election who has said  he  supports the president.
In a speech announcing  his  candidacy last month   Sisi  said: “I promise you that the next presidential elections will be a model for freedom and transparency  and that there will be an equal opportunity for all candidates.”

Output: Abdel Fattah al-Sisi


Input: Consider Input: Because of Bush 's decisions , America has not had a successful foreign terrorist attack since 911 . 
Ronald Kessler reporting from Washington , D.C. -- In the sweep of history , George W. Bush will be seen as one of our greatest presidents because of the decisions he made to keep us safe after 911 . 
Since 911 , the courts and Congress have allowed all of the Bush programs for uncovering terrorists to continue . 
But Bush 's proclamation just after the terrorist attack that any country harboring a terrorist will be considered a terrorist country alone meant that Arab countries began cooperating in the war on terror , turning over thousands of terrorists and leads . 
As with President Bush , the media portrayed Ronald Reagan as a bellicose fool . 
Bush 's USA Patriot Act tore down the so-called wall imposed by Attorney General Janet Reno , a wall that prevented FBI agents from sharing information with each other and with the CIA . 
Two days after the attack , FBI Director Robert S. Mueller III and Attorney General John Ashcroft began to brief Bush . 
"They talked about how the terrorists got plane tickets , got on planes , moved from one airport to another , and then attacked our citizens ," Andy Card , Bush 's chief of staff , told me for my book "The Secrets of the FBI ." 
By tripling the number of drones on order , Bush made it possible for President Obama to take out dozens of key al-Qaida leaders . 
And as Leon Panetta said when he was CIA director , Bush 's coercive interrogation techniques , including waterboarding , provided clues that helped lead to Osama bin Laden 's compound in Pakistan . 
Over time , Bush will be seen in the same light , recognized for keeping us safe and winning the war on terror . 
In 2005 , Bush established the National Counterterrorism Center in McLean , Va. , where 200 analysts from the CIA and FBI sit side by side analyzing threats 24 hours a day . 
Instead of hailing the efforts to connect the dots , the media demonize Bush and those who are trying to protect us , portraying the tools that uncover clues to plots as "spying on innocent Americans ." 
The National Security Agency -LRB- NSA -RRB- intercepts ordered by Bush opened for the FBI a window on terrorist activity within the U.S. . 
Many in the media could not bear to hear that Bush might have been at least partially right about Saddam , and few newspapers reported the story .


Output: George W Bush