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: Rihanna  has emerged as the unlikely inspiration behind Arsenal's thumping 5-1 win against Everton.
 The singer  was at the Emirates to watch the match and enjoy the Gunner's work  work  work  work  work ethic.
After the match   she  posed with midfielder  Mesut Ozil  who described  her  as the team's "lucky charm".
The German said he was "still unbeaten with Riri" - a reference to when  she  came to watch the 2014 World Cup Final between Germany and Argentina.
Ozil himself couldn't get on the scoresheet but with  Rihanna  pulling the inspirational strings during a pre-match meet and greet  other players stepped up.
It's just a shame that whoever was looking after  her  social accounts still referred to the game as "soccer".
After the game  manager Arsene Wenger seemed to play down the importance of  Rihanna 's contribution  focusing instead on his side's "penetration and sharper game".
Given Arsenal's up and down season  there are probably high level talks with  Rihanna 's people to see if  her  schedule allows any more trips to watch the team - with one eye surely on  their  next Europa League match  away at Ostersunds FK.

Output: Rihanna


Input: Consider Input: "Bush wanted to do the right thing by fulfilling this humanitarian impulse ," says Chow . 
In so doing , Chow contends , Bush paved the way for an era in which global health assistance has become a prominent new instrument of U.S. statecraft . 
By contrast , only a few Americans have ever heard of PEPFAR , the U.S. President 's Emergency Plan for AIDS Relief , which President Bush announced in his State of the Union address in 2003 . 
The name might surprise you : it 's George W. Bush . 
That 's partly because the United States has done very little to publicize the success of PEPFAR , and partly because the Bush presidency was overshadowed by much more high-profile aspects of his foreign policy -LRB- such as the invasion of Iraq -RRB- . 
Indeed , Bush still enjoys high popularity ratings in Africa , where he 's widely regarded as one of the continent 's great benefactors . 
At the same time , I think it 's a tragedy that the foreign policy shortcomings of the Bush administration have conspired to obscure his most positive legacy -- not least because it saved so many lives , but because there 's so much that Americans and the rest of the world can learn from it . 
"Bush did more to stop AIDS and more to help Africa than any president before or since ," says New York Times correspondent Peter Baker , who 's writing a history of the Bush-Cheney White House that 's due to appear in October . 
If it were n't for Iraq , it would be one of the main things history would remember about Bush , and it still should be part of any accounting of his presidency ." 
In his 2003 speech , President Bush called upon Congress to sponsor an ambitious program to supply antiretroviral drugs and other treatments to HIV sufferers in Africa .

Output: George W Bush


Input: Consider Input: America's war in Afghanistan is the longest war the U.S. has ever fought. Beginning a month after the terrorist attacks of Sept. 11  2001  the initial mission was to remove the Taliban from power and destroy the al-Qaida terror network. Now  nearly 17 years later   Pulitzer Prize-winning journalist Steve Coll  points out that the war's goals have changed.
"The objective is not a grand peace ceremony on some grand aircraft carrier  " Coll  says. "It's to reduce the violence in Afghanistan  to reduce the suffering of innocents in Kabul  to support the constitutional government that we invested in after Sept. 11 so heavily in money and in American lives and sacrifices on the battlefield."
Directorate S The C.I.A. and America's Secret Wars in Afghanistan and Pakistan by Steve Coll Hardcover  757 pages   purchase close overlay Buy Featured Book Your purchase helps support NPR programming. How?
World  Steve Coll :  The Secret Plans For Kashmir Steve Coll :  The Secret Plans For Kashmir  Listen


Output: Steve Coll