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].

Example Input: Fannie and Freddie buy mortgages and package them into securities with a guarantee against default.
 Fannie and Freddie have a legal right to return bad loans  especially if they later discover fraudulent statements on applications. Any money they recover offsets their losses.
 A bigger headache for lawmakers is figuring out what to do with Fannie and Freddie in the future.
 The Obama administration is working on a plan to restructure the mortgage market and make sure home loans are affordable. Officials don't plan to release details until next year. But Michael Barr  an assistant Treasury secretary  told the panel Wednesday that Fannie and Freddie "will not exist in the same form as they did in the past."
 Republicans have seized on the administration's management of Fannie and Freddie to illustrate Democrats' push for broadening the reach of the federal government. They say loans acquired by Fannie and Freddie since the September 2008 takeover have put taxpayers at risk.
 But Democrats and regulators say the loans acquired by Fannie and Freddie before their takeover represent the overwhelming majority of the companies' losses. New loans acquired since then have been performing well  they note.
 "There is no urgency " to reform the two companies  said Rep. Barney Frank  the committee's chairman. "The pattern of abuse they had engaged in has been changed...Fannie and Freddie are behaving differently and are causing far less problems."
Example Output: Freddie Freddie

Example Input: WARSAW  Poland (AP) —  A new art exhibition that explores the little-known connections Mexican artists Frida Kahlo and Diego Rivera  had to Poland is bringing works inspired by Mexico's indigenous cultures to a European audience which rarely has the chance to see  them .
 "Frida Kahlo & Diego Rivera . Polish Context" features iconic Kahlo self-portraits and paintings by Rivera alongside works by two Polish-born artists.
 The show  also tells the story of the mysterious disappearance of a Kahlo painting titled "The Wounded Table" after  it  was displayed in Poland in 1955.
One is the photographer Bernice Kolko  who took photos of  Kahlo  during the last years of  her  life  even intimate images of the artist on  her  death bed and at  her  funeral. The other is Fanny Rabel  who was a student of  Kahlo 's and an apprentice to Rivera  becoming one of the first female muralists in Mexico.
CORRECTS SOURCE - Guests attend a preview of a new exhibition on Mexican artists Frida Kahlo and Diego Rivera in Poznan  Poland  on Tuesday Sept. 26  2017.  "Frida Kahlo & Diego Rivera . Polish Context" features iconic Kahlo self-portraits  works by Rivera and the works of two Polish-born artists linked to the couple. It also recalls the mysterious disappearance of a  Kahlo  painting after it was displayed in Poland 62 years ago. (Maciej Kaczyński/CZ ZAMEK via AP)
The paintings on display include several of  Kahlo 's key works  including "Self-portrait with Monkeys" and "Self-Portrait as Tehuana " also known as "Diego in My Thoughts." The painting shows  Kahlo  stuck in a web and with a small portrait of Rivera on  her  forehead  an apparent reference to  her  long obsession with the husband who betrayed  her  with other women.
Example Output: Frida Kahlo

Example Input: Police said  Thomas M. Murphy   of the 1600 block of 44th Avenue  Stone Park  was charged with possession of child pornography. According to police  at about 8 p.m. on Feb. 1  library employees called police after reports from staff and students that  Murphy  had viewed and printed photographs at the library.
According to police   Murphy  was taken into custody and held at the police department while investigators obtained a search warrant for  his  home and car. Police said at about 9 p.m. on Feb. 2  authorities executed the warrant and confiscated several images of girls who appeared to be under the age of 18  along with three computers  which are pending forensic analysis. No evidence was found in the car  police added.
 Murphy  was released on a $15 000 bond  police said.  He  is to appear for a hearing Feb. 28 in Maybrook Court.
Efforts to reach  Murphy  were unsuccessful.
Example Output:
Thomas M. Murphy