Question:  Roy Black is a civil and criminal defense trial attorney who has represented an American financier and registered sex offender who served how many months in prision for his conviction of soliciting an underage girl for prostitution?

full_context: Document 1: BJ Kang: BJ Kang is an American Federal Bureau of Investigation special agent known for high-profile investigations of securities fraud. After leading the perp walk of Bernie Madoff in 2008 and Raj Rajaratnam in 2009, Reuters described him as possibly "the most feared man on Wall Street."
Document 2: Jeffrey E. Perelman: Jeffrey E. Perelman is the billionaire Founder, Chairman and CEO of the JEP Management holding company. He is the son of Raymond G. Perelman, and the younger brother of Ronald O. Perelman. He is primarily known for his investing and philanthropic activities.
Document 3: Roy Cohn: Roy Marcus Cohn ( ; February 20, 1927 – August 2, 1986) was an American attorney. During Senator Joseph McCarthy's investigations into Communist activity in the United States during the Second Red Scare, Cohn served as McCarthy's chief counsel and gained special prominence during the Army–McCarthy hearings.
Document 4: Great Saint James, U.S. Virgin Islands: Great Saint James is an island of the United States Virgin Islands, located off the east end of St. Thomas. The island is approximately 165 acres in size and is reportedly owned by Jeffrey Epstein. There is one estate on the island.
Document 5: Rudy Giuliani: Rudolph William Louis Giuliani {'1': ", '2': ", '3': ", '4': "} ( ; born May 28, 1944) is an American lawyer, businessman, public speaker, former mayor of New York City, and an informal adviser on cybersecurity to the White House.
Document 6: Jho Low: Low Taek Jho (), often called Jho Low, is a Malaysian financier and the beneficiary of numerous discretionary trust assets said by the US Government to originate from corrupt payments out of the Malaysian 1MDB fund. He gained notoriety as a "tabloid party boy" in New York City. He is reported to have a close relationship with Riza Aziz, the stepson of Malaysian Prime Minister Najib Razak. Low has been associated with numerous high value transactions, including acquisitions of businesses, luxury real estate and art, as well as philanthropy. Low runs a Hong Kong-based finance company called Jynwel Capital.
Document 7: Mark Geragos: Mark John Geragos (born October 5, 1957) is an Armenian-American criminal defense lawyer. Clients that he has represented include Michael Jackson, actress Winona Ryder, politician Gary Condit, Susan McDougal, and Scott Peterson. He was also involved in the Whitewater controversy. Geragos represented suspended NASCAR driver Jeremy Mayfield; Paul and Kulbir Dhaliwal, two brothers injured after a tiger escaped in San Francisco Zoo; and musician Chris Brown, who pleaded guilty in the assault of his then girlfriend Rihanna. In addition, he assisted the family of David Carradine in the aftermath of his accidental auto-erotic death. He is considered a "celebrity lawyer".
Document 8: Jose Baez (lawyer): Jose Angel Baez (born October 17, 1968) is an American lawyer and "New York Times" best selling author. He is best known as the lead attorney for Casey Anthony, who was acquitted of murder in July 2011 after a trial that attracted significant national and international attention.
Document 9: Jeffrey Epstein: Jeffrey Edward Epstein (born January 20, 1953) is an American financier and registered sex offender in the United States. He worked at Bear Stearns early in his career and then formed his own firm, J. Epstein & Co. In 2008, Epstein was convicted of soliciting an underage girl for prostitution, for which he served 13 months in prison. He lives in the US Virgin Islands.
Document 10: Gerald B. Lefcourt: Gerald B. Lefcourt is a criminal defense lawyer with a reputation for taking on unpopular and high-profile clients, including such clients as the Black Panthers, Abbie Hoffman, Harry Helmsley, a co-defendant of Michael Milken, former New York State Assembly Speaker, Mel Miller, Russell Crowe, and Tracy Morgan. He was a featured personality in the 2006 documentary Giuliani Time. Recent victories include a full acquittal of rap mogul and Murder, Inc. Records founder Irv Gotti on federal money laundering charges. Lefcourt is currently one of the attorneys in the federal KPMG tax shelter fraud prosecution, believed to be the largest tax fraud case ever brought in the history of the United States.
Document 11: Johnnie Cochran: Johnnie L. Cochran Jr. (October 2, 1937 – March 29, 2005) was an American lawyer best known for his leadership role in the defense and criminal acquittal of O. J. Simpson for the murder of his former wife, Nicole Brown Simpson and her friend, Ron Goldman.
Document 12: Jonathan Lebed: Jonathan G. Lebed (born September 29, 1984) is an American stock trader prosecuted by the SEC at age 15 for stock manipulation.
Document 13: Roy Black (attorney): Roy Black (born February 17, 1945 in New York City) is a civil and criminal defense trial attorney. He is best known for his gaining an acquittal, in 1991, of William Kennedy Smith on charges of rape and for his representation of conservative radio commentator Rush Limbaugh. Other celebrities whom Black has represented include actor Kelsey Grammer, racer Hélio Castroneves, "Girls Gone Wild" creator Joe Francis, artist Peter Max, billionaire Jeffrey Epstein, and Justin Bieber. Black is also informally referred to by his nickname, "The Professor."
Document 14: Robert Shapiro (lawyer): Robert Leslie Shapiro (born September 2, 1942) is an American civil litigator, co-founder of RightCounsel.com, and senior partner in the Los Angeles-based law firm Glaser Weil Fink Jacobs Howard Avchen & Shapiro, LLP. He is most recognized for being part of the "dream team" legal team that successfully defended O. J. Simpson in 1995, from the charges that he murdered his ex-wife, Nicole Brown Simpson, and her friend, Ron Goldman, in 1994. Shortly after the O. J. Simpson murder case, he steered his practice away from criminal defense toward civil litigation. He also cofounded LegalZoom and RightCounsel.com and appears in their television commercials.
Document 15: Bernard Madoff: Bernard Lawrence "Bernie" Madoff ( ; born April 29, 1938) is an American fraudster and a former stockbroker, investment advisor, and financier. He is the former non-executive chairman of the NASDAQ stock market, and the admitted operator of a Ponzi scheme that is considered the largest financial fraud in U.S. history. Prosecutors estimated the size of the fraud to be $64.8 billion, based on the amounts in the accounts of Madoff's 4,800 clients as of November 30, 2008.
ground_truth: 13 months