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: Robert Dudley  who will replace Tony Hayward on Oct. 1  promised changes in light of the environmental disaster. "There's no question we are going to learn things from this investigation of the incident " he said.
 Hayward has some sympathy in his native Britain  where many pensions rely on BP stock and some consider U.S. outrage at the company to be over the top. A recurring theme in newspaper editorials and discussions among many Britons is that there simply wasn't much one man could do in the face of relentless American wrath.
 "BP sends Tony Hayward to Siberia to appease US " read a headline in the Guardian.
 Hayward  who will stay on BP's board until Nov. 30  will receive a year's salary of 1.045 million pounds (US$1.6 million) as part of his severance package. His pension benefits are valued at about 11 million pounds (US$16.8 million)  and he retains his rights to shares under a long-term performance program that could eventually be worth several million pounds if BP's share price recovers.
 Hayward said it was right that BP embark on its next phase under new leadership  and expressed his condolences for the families of the workers killed in the explosion.
 "The Gulf of Mexico explosion was a terrible tragedy for which -- as the man in charge of BP when it happened -- I will always feel a deep responsibility  regardless of where blame is ultimately found to lie " he said.
 President Barack Obama  who once said he would fire Hayward if he could  discussed the change in BP's leadership with Svanberg on Monday  Gibbs said Tuesday. No details about the conversation were released.
 Dudley spent some of his childhood in Mississippi and worked for 20 years at Amoco Corp.  which merged with BP in 1998. He lost out to Hayward on the CEO slot three years ago.
Hayward if he could  discussed the change in BP's leadership with Svanberg on Monday  Gibbs said Tuesday. No details about the conversation were released.
 "Our concern is not who heads BP " Gibbs said. "Mr. Hayward is leaving. The key is that BP can't leave and should not leave the Gulf. ... They have obligations and responsibilities as the responsible party in this instance that have to be met regardless of who the CEO is."

A: Tony Hayward
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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: It was nuclear power's birthday bash  but  Exelon CEO Chris Crane  head of the nation's largest nuclear operator   named energy storage the most promising technology of the future  one that could render nuclear power unnecessary.
"In our view the long-term viable technology that will drive a cleaner future is economic storage  " Crane  said at "Reactions: New Perspectives on Our Nuclear Legacy " the University of Chicago's commemoration of the first manmade nuclear reaction 75 years ago under the stands of its abandoned football stadium.
 Crane 's comments departed from those of former Energy Secretary Ernest Moniz  who  delivering the event's closing keynote  insisted the United States must continue to pursue nuclear energy for reasons of both climate and national security.
 Crane   who was Exelon's chief nuclear officer before  he  became CEO  still defended  his  company's 24 existing nuclear plants  because  he  contends energy storage hasn't arrived yet.
Even though the cost of lithium-ion batteries has dropped precipitously and promises to continue to do so   Crane  contends storage hasn't arrived because lithium-ion does not provide all the features the energy market needs.
"Storage is becoming much more economic  but those are one-hour and four-hour discharges  and they only have a life cycle of so long "  he  said. "We need days of discharges."
So  Crane  is betting on whatever the national labs develop for next-generation energy storage.
"What we need to do is continue with the labs and continue the research that's going on: what is life beyond lithium ion  what is the storage mechanism that we can harness more renewable energy in that form?"  he  said. In the meantime  existing nuclear plants should be kept open  with license renewals and fairer financial terms   he  said  but with the understanding that they are "transition assets."
Both  Crane  and Moniz concede new nuclear plants are unlikely to be built  at least new nuclear plants that resemble the ones Exelon operates today.
Moniz and Crane both also expressed uncertainty about the prospects of the likely form that innovation will take: small modular reactors.
"I don't know if all of this will come together to give an effective  attractive source  but we're never going to find out if we don't get there " Moniz said. "It's the kind of thing that we've got to find out if that dog hunts. Is it going to perform economically? It's got great safety characteristics. There are reasons to be optimistic from the point of view that if you have a much smaller plant you don't have the capital at risk. You may get better financing. "
Crane  pitted small modular reactors against energy storage:
Then  moments later   Crane  complained about just that kind of comparison:
"We're sitting here debating what is the best technology versus debating what is the best outcome  and the best outcome around those economics. And it's distractive conversation that we've all been pushed into  " Crane  said. "We need to come up with what is the outcome that we want and then how do we get there."

A:
Crane
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