Question: Which university is considered a public research university, Columbia University of Virginia Commonwealth University?

full_context: Document 1: Princeton University: Princeton University is a private Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution. The institution moved to Newark in 1747, then to the current site nine years later, where it was renamed Princeton University in 1896.
Document 2: Yale University: Yale University is an American private Ivy League research university in New Haven, Connecticut. Founded in 1701, it is the third-oldest institution of higher education in the United States and one of the nine Colonial Colleges chartered before the American Revolution.
Document 3: VCU School of Medicine: The Medical College of Virginia/Virginia Commonwealth University School of Medicine is the largest and oldest continuously operating Allopathic medical school in Virginia. The school traces its beginnings to the 1838 opening of the medical department of Hampden–Sydney College, which in 1854 became an independent institution known as the Medical College of Virginia. In 1968, MCV joined with the Richmond Professional Institute to form Virginia Commonwealth University. The School of Medicine is one of five schools within the VCU Medical Center.
Document 4: Columbia University: Columbia University (Columbia; officially Columbia University in the City of New York), established in 1754, is a private Ivy League research university in Upper Manhattan, New York City, often cited as one of the world's most prestigious universities.
Document 5: Cornell University: Cornell University ( ) is a private and statutory Ivy League research university located in Ithaca, New York. Founded in 1865 by Ezra Cornell and Andrew Dickson White, the university was intended to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's motto, a popular 1865 Ezra Cornell quotation: "I would found an institution where any person can find instruction in any study."
Document 6: VCU Medical Center: The VCU Medical Center is Virginia Commonwealth University's medical campus located in downtown Richmond, Virginia in the Court End neighborhood. The VCU Medical Center used to be known as the Medical College of Virginia, which merged with the Richmond Professional Institute in 1968 to create Virginia Commonwealth University. In the 1990s, an authority controlling MCV Hospitals was created called the Medical College of Virginia Hospitals Authority. In 2004, the name of this authority was changed to VCU Health System and the MCV Hospitals and surrounding campus were branded VCU Medical Center. This authority controls the employees and real estate occupied by the five schools within the VCU Medical Center. It was at this time that MCV Campus moniker was created. West Hospital houses various clinical, administrative and support services of the hospitals of VCU Medical Center; clinical, academic and administrative units of the School of Medicine; and academic and administrative units of the School of Allied Health Professions.
Document 7: University of Virginia: The University of Virginia (U.Va. or UVA), frequently referred to simply as Virginia, is a public research university and the flagship for the Commonwealth of Virginia. Founded in 1819 by Declaration of Independence author Thomas Jefferson, UVA is known for its historic foundations, student-run honor code, and secret societies.
Document 8: VCU School of Dentistry: Virginia Commonwealth University School of Dentistry is the dental school of Virginia Commonwealth University. located in the United States city of Richmond. The school opened its doors in 1893. It is the only dental school in Virginia and is one of five schools within the VCU Medical Center.
Document 9: VCU Massey Cancer Center: Founded in 1974, VCU Massey Cancer Center is a non-profit organization part of Virginia Commonwealth University. Located in Richmond, Virginia, Virginia Commonwealth University is one of the nation’s top research universities, and VCU Medical Center, a leading academic health system ranked Virginia’s top hospital by U.S. News & World Report in 2012.
Document 10: VCU School of Business: The Virginia Commonwealth University School of Business is located in Richmond, Virginia, home to one of the twelve Federal Reserve Banks. Because the school is located in downtown Richmond, Virginia, many students are able to receive internships and other opportunities within the city. Richmond, Virginia includes the third highest concentration of U.S. Fortune 1000 headquarters and is ranked as one of the nation’s 10 best places for business and careers.
Document 11: Virginia State University: Virginia State University (VSU), also known as Virginia State, is a historically black public land-grant university located north of the Appomattox River in Petersburg. Founded on  06, 1882 (1882--) , Virginia State developed as the United States's first fully state-supported four-year institution of higher learning for black Americans. The university is a member school of the Thurgood Marshall College Fund.
Document 12: List of Columbia University alumni: This is a sorted list of notable persons who are alumni of Columbia University, New York City. For further listing of notable Columbians see: Notable alumni at Columbia College of Columbia University; Columbia University School of General Studies; Barnard College; Columbia Law School; Columbia Business School; Columbia University Graduate School of Journalism; Columbia Graduate School of Architecture, Planning and Preservation; Columbia University College of Physicians and Surgeons; Columbia University Graduate School of Education (Teachers College); Fu Foundation School of Engineering and Applied Science; Columbia Graduate School of Arts and Sciences; Columbia University School of Professional Studies; Columbia University School of the Arts; and the School of International and Public Affairs.
Document 13: Virginia Commonwealth University: Virginia Commonwealth University (VCU) is a public research university located in Richmond, Virginia. VCU was founded in 1838 as the medical department of Hampden–Sydney College, becoming the Medical College of Virginia in 1854. In 1968, the Virginia General Assembly merged MCV with the Richmond Professional Institute, founded in 1917, to create Virginia Commonwealth University. In 2015, more than 31,000 students pursue 226 degree and certificate programs through VCU's 13 schools and one college. The VCU Health System supports the university's health care education, research and patient care mission.
Document 14: Harvard University: Harvard University is a private Ivy League research university in Cambridge, Massachusetts, established in 1636, whose history, influence, and wealth have made it one of the world's most prestigious universities.
Document 15: Cornell Law School: Cornell Law School is the law school of Cornell University, a private Ivy League university located in Ithaca, New York. It is one of the five Ivy League law schools and offers three law degree programs (J.D., LL.M., and J.S.D.) along with several dual-degree programs in conjunction with other professional schools at the university. Established in 1887 as Cornell's Department of Law, the law school is ranked 13th in the United States by U.S. News & World Report.
ground_truth: Virginia Commonwealth University