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]: There are more airlines for Boeing to serve in those emerging markets  which has helped the company diversify its backlog of plane orders. Investors like to see a strong queue of plane orders set to be filled  said  Chris Higgins  a senior equity analyst at Morningstar .
The backlog size â bolstered by increases in air traffic demand â helped keep the aerospace industry afloat during the downturn in the last economic cycle   Higgins  said. Some investors are starting to question whether the market is still hinged to global economy cycles.
âItâs giving people a lot of comfort â  Higgins  said.
Analysts expect the demand for Caterpillarâs and Boeingâs products to continue at least into 2018  though  Higgins  from Morningstar said  it âs going to be hard for Boeingâs stock to repeat what happened in 2017.  Higgins  also pointed to some potential events at Boeing  such as the rumored acquisition of Brazilian jet-maker Embraer  that might not make investors too happy  but itâs still unclear whether those will pan out   he  said.
[A]: Higgins


[Q]: Sen. John McCain (R-Ariz.) . (Cliff Owen/Associated Press)
What happened to  you ?
But boo Sen. John McCain (R-Ariz.) you did  at the behest of President Trump during a rally in Alabama last week.
Mike Allen of Axios further reported this week that Trump has been “physically mocking” the thumbs-down gesture  McCain  used to deliver the deciding vote against the Republican health-care bill in July. Did that mocking involve an imitation of  McCain ’s stiff arm movements? In case you haven’t read a newspaper in the 45 years since we played on the same Dixie Youth Baseball team together   McCain  got the hell beaten out of  him  by the communists who held  him  in the Hanoi Hilton for more than five years.
Meanwhile   McCain  continued receiving the beatings that would forever leave  him  incapable of lifting  his  arms over  his  head.  He  kept enduring torture because  he  refused to leave  his  band of brothers behind.
Do you have that kind of character? If you booed  McCain  at last week’s rally  don’t bother answering. Someone has obviously failed you in your life; you probably need to spend some time figuring out who that was. And if you still go to church  you may also want to pray for all those around you who put tribal politics ahead of basic humanity.
Then maybe you should drive home and tell your children the story of John McCain’s sacrifice. If you can teach your children that lesson of heroism  there’s a chance they might grow up to have more character than the president you now praise.
[A]: John McCain


[Q]: CLOSE SportsPulse: Martin Rogers believes the World Cup group stage is filled with plenty of drama  potential Cinderella stories and star-studded matchups. So much so you'll forget the U.S. isn't in it. USA TODAY  Sports
Kaka  looks on during  his  final game competitive soccer game as a player with Orlando City. (Photo: Kim Klement  USA TODAY Sports)
 Former Ballon d'Or winner Kaka  says  he  is retiring from soccer at age 35.
 Kaka  who played for Brazil  AC Milan and Real Madrid   told Brazil's Globo TV on Sunday that "my last word is that the cycle of my career as a player ends here."
"I needed time to think and take a decision calmly "  Kaka  said. "I have arrived to the conclusion that now is the moment to finish my career as a professional player."
A graceful midfielder   Kaka  won 92 caps for Brazil  scoring 29 goals and featuring at three World Cups.  He  was part of the Brazil squad that lifted the global trophy in 2002.
 Kaka  said that  he  would like to remain linked professionally to soccer  perhaps as a manager or sports director of a team.
MORE: 
Kaka  was 21 when Milan brought  him  to Italy from Sao Paulo. The dangerous playmaker won the Ballon d'Or and FIFA's World Player award in 2007.  He  was part of the Milan team that won the 2007 Champions League final against Liverpool  and scored 95 goals across all competitions for the Rossoneri.
 Kaka  joined Real Madrid in 2009 for 67 million euros ($78.7 million) but had an up-and-down stint due to a series of injuries.  He  returned to Milan on a free transfer ahead of the 2013-14 season. A brief spell back with Sao Paulo preceded three MLS campaigns with Orlando  for whom  he  enjoyed individual success despite limited results for the Florida franchise.
 Kaka  was a free agent after leaving Orlando in October.
 Kaka  tweeted Sunday that "I'm now ready for the next journey."
[A]:
Kaka