Question: Which Holocaust survivor is grandfather to the son-in-law and senior advisor to President of the United States Donald Trump.? 

full_context: Document 1: Daniel Rose (real estate developer): Daniel Rose (born 1929) is an American real estate developer, philanthropist and essayist. He is best known professionally for developing the large-scale Pentagon City complex adjacent to Reagan National Airport; building the One Financial Center office tower that anchored the redevelopment of downtown Boston; and conceiving and reinventing a New York real estate apartment complex into the internationally renowned Manhattan Plaza for the Performing Arts. A forceful advocate for private philanthropy and public service, he founded the acclaimed innner-city youth education program, the Harlem Educational Activities Fund, established a wide range of academic and professional educational programs, and served multiple government administrations in unpaid advisory roles. His award-winning essays and speeches have covered subjects as diverse as economics, inner city education, racial problems, real estate, food & wine, and housing.
Document 2: Joshua Kushner: Joshua Kushner (born June 12, 1985) is an American businessman and investor. He is the founder and managing partner of the investment firm Thrive Capital, co-founder of Oscar Health, and the son of real estate magnate Charles Kushner. His brother is Jared Kushner, the son-in-law and senior advisor of the US President Donald Trump.
Document 3: Moshe Rubashkin: Moshe Rubashkin, (born 1958 in Brooklyn, New York), an ultra-Orthodox Jew of the Lubavitcher hasidic movement, is a former chairman of the Crown Heights Jewish Community Council (CHJCC), a private, nonprofit social service organization in Crown Heights, Brooklyn, New York, that receives $2 million per annum in state funding for community improvement projects. He was elected to a three-year term in January 2005, while on probation after having served 15 months in federal prison on bank fraud charges. In 2008, he was sentenced to 16 months in prison for illegal storage of hazardous waste at a textile mill he formerly owned, and remained in office as head of CHJCC while serving time in federal prison.
Document 4: Joseph C. Hyman: (1899 – February 10, 1949) was an American attorney, social worker, and philanthropist. He was born in New York, to Abraham Chaim Charlap, a member of the Sephardic rabbinical dynasty of Gedaliah ibn Yahya ben Joseph and a noted author and publisher of Hebrew texts and their English translations. Through his work with Herbert H. Lehman, he became involved with the Joint Distribution Committee, the largest and most encompassing of the organizations devoted to the Jewish refugee and rescue crisis during and after WWII, and was its vice chairman under Felix M. Warburg from 1922 until his retirement in 1947. Under his leadership the Joint Distribution Committee helped 81,000 Jews to emigrate out of Nazi-occupied Europe to safety, smuggled aid to Jewish prisoners in labor camps and provided financing for the Polish Jewish underground in preparations for the 1943 Warsaw Ghetto revolt. He was a key figure in keeping American Jewish leaders informed about the Holocaust and met with Secretary of the Treasury Henry Morgenthau Jr. and Secretary of State Cordell Hull to request visas for the 907 refugees aboard the MS St. Louis on June 1, 1939, which was unsuccessful. The events of the MS St. Louis tragedy are recorded in the 1976 film Voyage of the Damned. Apart from his activities within the JDC, he served as adviser to the League of Nations High Commissioner on Refugees, James G. McDonald, and was assistant to Felix M. Warburg as chairman of the administrative committee of the Jewish Agency for Palestine.
Document 5: Marc Rich: Marc Rich (born Marcell David Reich; December 18, 1934 – June 26, 2013) was an international commodities trader, hedge fund manager, financier and businessman. He was best known for founding the commodities company Glencore and for being indicted in the United States on federal charges of tax evasion and making controversial oil deals with Iran during the Iran hostage crisis. He was in Switzerland at the time of the indictment and never returned to the United States. He received a controversial presidential pardon from U.S. President Bill Clinton on January 20, 2001, Clinton's last day in office.
Document 6: Fred Trump: Frederick Christ Trump Sr. (October 11, 1905 – June 25, 1999) was an American real estate developer and philanthropist, primarily in New York City, and father of Donald Trump, the 45th President of the United States, and Maryanne Trump Barry, a United States Court of Appeals judge.
Document 7: Louis Dubin: Louis Myerberg Dubin (born January 31, 1963) is a prominent fourth-generation real estate developer notable for developing upscale condominiums, typically in large east-coast United States cities. His firm Athena often sold condominiums to middle and upper-middle class buyers by touting affordability and panoramic skyline views. In addition, his firm converted landmark buildings into luxury condominiums, some of which were bought by luminaries such as Charles Bronfman. He designed buildings to feature art prominently by artist-sculptors such as Jonathan Cramer. He was described by "New York Magazine" as being one of the "new generation of uptown A-listers". His views are quoted in newspapers and magazines, and he has made appearances on real estate talk shows. During the real estate bust beginning 2008, his firm was hit hard, and he formed a new firm, LMD Worldwide LLC. In June 2012, Dubin joined the Florida real estate developer The St. Joe Company as an Executive Vice President and a member of its management team.
Document 8: Charles Schusterman: Charles Schusterman (1935–2000) was a Russian-born American businessman and philanthropist. He was the founder of the Samson Investment Company, a privately owned oil and gas company with oilfield investments in the United States, Canada, Venezuela and Russia. He was a large donor to Jewish causes in the United States and Israel. He and his wife, Lynn Schusterman founded the Charles and Lynn Schusterman Family Foundation.
Document 9: Jona Goldrich: Jona Goldrich (born Jona Goldreich; September 11, 1927 – June 26, 2016) was an American real estate developer and philanthropist. Born in Lviv, in the late 1920s, he emigrated to Israel in the midst of World War II, where he served in the 1948 Arab–Israeli War and worked for a labor union. By the 1950s, he emigrated to the United States, and he became a real estate developer and investor in Los Angeles County. A Holocaust survivor, he supported Jewish causes in Israel and the United States.
Document 10: Rubin Schron: Rubin Schron, who goes by Ruby, is a New York City real estate investor, landlord and the founder of Cammeby's International Group. He has a personal net worth of well over $10 billion, according to data company Real Capital Analytics. The portfolio of Cammeby's, which Schron founded in 1967, includes office buildings, market-rate and government-subsidized apartment complexes, nursing homes, the 16-building complex in Sunset Park now known as Industry City, a stake in the bottom half of Woolworth Building and industrial properties scattered across Long Island. In 2013, Schron made an unsolicited and unsuccessful offer to buy the Empire State Building for $2 billion, but he has not had problems closing many other deals throughout his long career. In 2003, an investment group led by Schron paid $600 million for a portfolio of about 6,000 outer-borough apartments from Donald Trump. Other buildings he owns include the Monterey, a 521-unit rental multifamily building on Manhattan's Upper East Side; over the decades, Schron has also amassed a portfolio of Mitchell-Lama apartment buildings whose values have been skyrocketing to record values, after reverting to market rates when government subsidies expired. In 2007, he sold nearly 4,000 units of former Mitchell-Lama properties in five complexes in Harlem and on Roosevelt Island for $940 million. Schron, who practices Orthodox Judaism, has eight children and 50 grandchildren. He and his family have lived in the same single-family home in Brooklyn for many decades.
Document 11: Stephen M. Ross: Stephen M. Ross (born May 10, 1940) is an American real estate developer, philanthropist and sports team owner. Ross is the chairman and majority owner of The Related Companies, a global real estate development firm he founded in 1972. Related is best known for developing the Time Warner Center, where Ross lives and works, as well as the Hudson Yards Redevelopment Project. According to "Forbes" magazine, Ross had a net worth of $12 billion. Ross is also the principal owner of the Miami Dolphins and Hard Rock Stadium.
Document 12: Joseph Kushner: Joseph Kushner (October 10, 1922 – October 5, 1985) was an American real estate magnate, and the father of Murray Kushner and Charles Kushner, and grandfather of Jared Kushner, Joshua Kushner, and Marc Kushner. He came to the US as a Holocaust survivor from Belarus in 1949. At the end of his career, he handed out to his successor control of 4,000+ apartments, houses, and properties.
Document 13: Charles Kushner: Charles Kushner (born May 16, 1954) is an American real estate developer. He founded Kushner Companies in 1985. In 2005, he was convicted of illegal campaign contributions, tax evasion, and witness tampering, and served time in federal prison. After his release, he resumed his career in real estate. His son is Jared Kushner, who is the husband of Ivanka Trump and son-in-law and senior advisor to President of the United States Donald Trump.
Document 14: Business career of Donald Trump: Donald Trump is an American businessman, former television personality, and the 45th President of the United States. He began his real estate career at his father's company, Elizabeth Trump and Son, which he later renamed to The Trump Organization. He rose to public prominence after a number of successful real estate deals in Manhattan and New York City, and his company now owns and develops lodging and golf courses around the world. Trump partly or completely owned several beauty pageants between 1996 and 2015. He has marketed his name to many building projects and commercial products. Trump's unsuccessful business ventures have included several casino and hotel bankruptcies, the folding of his New Jersey Generals football team, and the now-defunct Trump University.
Document 15: Charles R. Schwab: Charles Robert Schwab (born July 29, 1937) is an American investor, financial executive, and philanthropist. He is the founder and chairman of the Charles Schwab Corporation. He pioneered discount sales of equity securities starting in 1975. His company became by far the largest discount securities dealer in the United States. He retired as CEO in 2008, but remains chairman and is the largest shareholder.
ground_truth: Joseph Kushner