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: Goldman Sachs CEO Lloyd Blankfein  has bitcoin on  his  mind  a day after reports broke that  his  firm was considering setting up a bitcoin trading operation.
The billionaire banker tweeted on Tuesday that  he  wasn't completely sure about  his  stance on the red-hot cryptocurrency.
 Blankfein  said  he 's "still thinking about bitcoin" and that  he  was not flat out endorsing or denouncing the digital currency. Here's the full tweet:
Still thinking about #Bitcoin. No conclusion - not endorsing/rejecting. Know that folks also were skeptical when paper money displaced gold. â Lloyd Blankfein (@lloydblankfein) October 3  2017

A: Lloyd Blankfein
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Q: QUITO (Reuters) - Ecuadoreans on Sunday voted to prevent presidents from holding more than two terms in office  according to the elections council  a win for President Lenin Moreno that blocks  his mentor-turned-adversary Rafael Correa  from returning to power.
The results from the referendum  called by Moreno  roll back a measure  Correa  pushed through Congress in 2015 to allow unlimited presidential re-election.
âThe victory of the âyesâ vote opens the path for us to work together  confrontation is a thing of the past â Moreno said in a televised broadcast  an apparent reference to  Correa âs famously combative style. âThe old politicians will not return.â
Moreno may now be emboldened to remove  Correa  allies from key government posts  and financial markets will likely see the result as confirming a more politically and fiscally conservative future for the South American oil exporting country.
FILE PHOTO - Ecuador's former President Rafael Correa talks to Reuters  in Quito  Ecuador January 30  2018. Picture taken January 30  2018. REUTERS/Daniel Tapia

A: Rafael Correa
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Q: Joanne Tyndell  offered  her  âheart wrenching apologiesâ to the family of Cpl. Mujahid Ramzziddin for involving the officer in an ultimately fatal encounter Feb. 21.
âI pray for [his] family and thank [him] for saving my life and allowing me to see my children again â  Tyndell  wrote.
Ramzziddin  who was off duty in his Brandywine  Md.  home  had agreed to help  Tyndell   a neighbor  as she was moving belongings out of the home she shared with her estranged husband  according to police.
While the locks were being changed on the home the morning of Feb. 21  Tyndellâs husband   Glenn Tyndell   emerged with a shotgun and fired five times  killing Ramzziddin  police said. Tyndellâs husband took the officerâs weapon and fled before he was fatally shot soon after in a confrontation with police.
 Tyndell   who had a temporary protective order against  her  husband  acknowledged the couple had experienced a difficult past since their July 2016 wedding but that  she  still loved  him .
âAnd while I endured painful times during our relationship it was only when the pain was directed to our children was when I had to end my loyalty to our vows and start protecting our children â  Tyndell  wrote. âAs adults we are responsible for our actions and make choices to stay in relationships for better or worse. But as parents our first priority is always to protect our children.â

A:
Joanne Tyndell
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