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].

[Q]: Former President George W. Bush has been widely praised for yesterday 's speech at the Dallas police memorial and especially for a quote which has been widely shared on social media . 
Many people on Twitter found themselves almost shocked that they were so impressed by Mr Bush . 
Michael Beckman , who described himself as a ` Jewish conservative Republican ' tweeted : ` President George W. Bush gave a beautiful speech today . 
Many people searched the internet to see if Mr Bush had plagiarized it from another source . 
Former President George W Bush speaks at Dallas memorial . 
Houston radio host Matt Patrick tweeted today : ` Loved George W. Bush 's speech yesterday ! 
Time magazine published Bush 's entire speech but it was that particular passage which was seen by many Americans as a touchstone for their feelings . 
Twitter user Jacob Boos claimed Bush 's speech was better than Obama 's and added : ` Then again probably not he has an agenda to push . ' 
But most thought that whoever had written his speech deserved great credit , as did Bush himself , for delivering it with warmth and sincerity . 
Mr Bush said : ` These slain officers were "the best among us" .
[A]: George W Bush


[Q]: 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.
[A]: Rihanna


[Q]: After working full time at a museum   Emily Doherty  does something millions of Americans do each day: head to a second job. In  her  case  it means donning a petticoat to portray a Colonial-era woman at living-history museums or national parks  where  she  sings and play-acts.
The 28-year-old needs the extra work so  she  can make ends meet  plus pay  her  $500-per-month student loan payment.  Doherty  is among the 30 percent of Americans who do something else for pay in addition to their full-time jobs  according to a recent NPR/Marist poll.
"I'd like to own a house someday " says  Doherty   who lives in Virginia. "The only way I'm going to be able to do that is if I work two jobs."
 Doherty 's second job means she barely has any time for herself or her friends on weeknights or even weekends. But it lets her chip away at her debt.
But earning less is not a choice for  Doherty   the museum worker: She faces that student loan payment every month. "I fully expect my federal loans to not be paid back before I die " she says.
Like many moonlighters NPR spoke to   Doherty  says  she 's working toward financial peace of mind.
"I hope that in the future  I am able to come to a place where I am financially stable enough to do just what drives me  and what makes me happy "  she  says.
And what would make  her  really happy is seeing  her  family back in Maine.  She  hasn't seen them in three years.  She 's saving up â bit by bit â for a plane ticket home this summer to watch  her  younger sister perform in a local play.
[A]:
Emily Doherty