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: Bernie Sanders helps celebrate free City College tuition . 
With all the fervor of a revival meeting , about 700 people at City College of San Francisco today cheered U.S. Sen. Bernie Sanders and the supervisor who helped make tuition at the college free to city residents . 
I want to use my life to help other people , like Bernie ," Headrick said .

A: Bernie Sanders
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Q: Trump took to Twitter on Tuesday to claim that Tennessee Republican helped "give us" the nuclear deal with Iran negotiated by President Barack Obama's administration. Earlier this month  he claimed that  Corker  is "largely responsible for the horrendous Iran Deal!"
 Corker  the chairman of the Senate Foreign Relations Committee   was in fact a vehement critic of the deal that emerged from international negotiations in the summer of 2015. After the deal was unveiled   he  wrote in an op-ed for The Washington Post that "Congress should reject this deal and send it back to the President."
 Corker  plotted efforts to block the deal  banding with Republicans -- and even some Democrats -- in an attempt to block the deal.
The following month   Corker  did just that  joining with the bipartisan group to vote against the deal. A procedural vote to move forward a resolution to reject the nuclear deal fell shy of the required 60-vote threshold.
Even before that vote   Corker  helped push through the legislation that would ultimately grant Congress powers to review the deal  which the Obama administration contemplated approving without congressional oversight.
 Corker  said such an attempt would be "a direct affront to the American people and seeks to undermine Congress' appropriate role" in a March 2015 letter to Obama.
 Corker 's calls for congressional review of the nuclear deal that was still being negotiated in the spring of 2015 ultimately led to the Iran Nuclear Agreement Review Act  which Obama ultimately signed despite initially opposing the measure.
That could be what White House press secretary Sarah Sanders was referring to on October 10 when she claimed: " Sen. Corker  worked with Nancy Pelosi and the Obama administration to pave the way for that legislation and basically rolled out the red carpet for the Iran deal  and those are pretty factual."
 Corker  defended the bill against that criticism in September 2015  noting that the legislation "actually took power back from the president."
"Without it  he could have unilaterally implemented the deal immediately. The President never would have been forced to submit the agreement to Congress and there would have been no review and no debate on this critical national security issue "  Corker  said then.
Trump's criticism of  Corker  on the Iran deal is also curious given that Trump initially considered  Corker  as a candidate for vice president and later secretary of state  in large part due to his foreign policy chops.

A: Corker
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Q: His brother Kunio Hatoyama served as internal affairs minister in Aso's cabinet but resigned after a falling-out in June.
 Yukio Hatoyama previously served as the party's secretary general and loyal lieutenant to his predecessor Ichiro Ozawa  defending him through a political donations scandal that finally cost Ozawa his job.
 Under Hatoyama  the DPJ has submitted a bill to the parliament seeking to introduce a blanket ban on all political donations by companies and groups excluding registered political groups within three years.
 Ironically  HatoyamaHatoyama himself came under fire in late June for the accounting irregularities of his fund-raising body.
 He said 21 million yen (220 000 dollars) had been wrongly recorded since 2005  an admission that followed media reports that the donors' list included names of dead people and citizens who have denied giving him money.
 Hatoyama graduated from the University of Tokyo  received a Ph.D in engineering from the United States' prestigious Stanford University  and was an assistant professor in the School of Economics at Tokyo's Senshu University.
 In 1986  he first won a lower house seat in a Hokkaido constituency as a ruling LDP member  and he has been re-elected six times since then.
 He left the ruling party in 1993 and -- after forming a now-defunct party with other LDP defectors to temporarily oust the ruling party -- co-founded the DPJ in 1996  going on to lead it for the first time from 1999 to 2002.
 Hatoyama is married to a former actress  Miyuki  also famous for her cookbooks  and has one son  who teaches engineering at a university in Moscow.
 His hobbies  according to his website  include touch football  tennis  watching baseball  listening to music  karaoke and computing.

A:
Ozawa Yukio Hatoyama
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