Question: George Mason University and University of Maine, are which type of higher education institution?
Context: The University of Maine (also referred to as UMaine, Maine or UMO) is a public research university in Orono, Maine, United States.  The university was established in 1865 as a land grant college and is the flagship university of the University of Maine System.  The University of Maine is one of only nine land, sea and space grant institutions in the nation. George William Johnson Jr. (July 5, 1928 – May 30, 2017) was an American academic and academic administrator who served as the President of George Mason University from 1978 to 1996.  Johnson is credited with transforming George Mason University from largely a commuter college into a nationally recognized research university during his 18-year tenure as president.  Under Johnson, total student enrollment doubled from 10,000 in 1979 to more than 24,000 students in 1996.  Johnson also oversaw the addition of 34 new academic programs (including 11 doctoral programs), the creation of GMU's first doctoral programs, and the establishment of the George Mason University School of Law (now known as the Antonin Scalia Law School) in 1979. George Mason University (Mason) School of Business is the business school of George Mason University, a state university in Virginia, United States.  The School of Business has campuses located in Fairfax, Arlington, and Herndon, VA. The Office of the Independent Adjudicator for Higher Education (OIA) is a company that handles students' complaints against universities within England and Wales.  The OIA does not investigate the merits of the original complaint, which must be done by a court.  It, however, reviews if the higher education institution followed their own procedures.  Its remit is limited to those complaints that have first been taken through the procedures of a higher education institution's own internal system without reaching a satisfactory conclusion in the view of the complainant.  Previously, all complaints to the OIA had to be made within three months of the conclusion of the internal investigation by the higher education institution (which should usually have resulted in issue of a 'Completion of Procedures' letter).  However, the following now applies: the complaint must be completed within one year of your 'Completion of Procedures' letter, except if your 'Completion of Procedures' Letter is dated on or before 8 July 2015 in which case The OIA must receive the Complaint Form within three months of the Letter's date. Tabarestan Higher Education Institution (TU) (Persian: موسسه آموزش عالی طبرستان Mo'assese āmoozeshe āliy-e Tabarestan‎ ‎ ) (also called Tabarestan University) is an institution of higher education in Formal sciences, Physical sciences, Social sciences, Behavioral sciences and Engineering in Chaloos, Iran.  Tabarestan Higher Education Institution is one of the most prestigious Institution between Institutions and Universities in Iran.  The institution is located in Chaloos near Caspian Sea and Caspian Hyrcanian mixed forests and beside Nowshahr port. Kevin Avruch (born the 22 February 1950 in Brooklyn, New York) is an American anthropologist and sociologist, Dean of the School for Conflict Analysis and Resolution at George Mason University.  He is the Henry Hart Rice Professor of Conflict Resolution and Professor of Anthropology.  He received his PhD in Anthropology from the University of California, San Diego in 1978, where he also received his MA in Anthropology in 1973.  He received his AB from the University of Chicago.  Dr. Avruch joined the faculty at George Mason University in 1980 after teaching at the University of Illinois and the University of California, San Diego.  He has also taught at the Mediterranean Academy of Diplomatic Studies at the University of Malta, the Kroc School of Peace Studies at the University of San Diego, the United Nations University for Peace in Costa Rica as well as for the Program in Conflict Resolution at Sabancı University in Istanbul.  In 2011 he was a Fulbright specialist at the Banaras Hindu University. Established in 1946, Gansu Agricultural University is a non-profit public higher education institution located in the small city of Lanzhou (population range of 250,000-499,999 inhabitants), Gansu.  Officially accredited/recognized by the Department of Education, Gansu Province, Gansu Agricultural University (GAU) is a large (enrollment range: 15,000-19,999 students) coeducational higher education institution.  Gansu Agricultural University (GAU) offers courses and programs leading to officially recognized higher education degrees such as bachelor's degrees, master's degrees, doctorate degrees in several areas of study.  It is also one of the university on the first list of China's Excellent Agricultural and Forestal Personnel Training Project.  This 70 years old HE institution has a selective admission policy based on entrance examinations.  GAU also provides several academic and non-academic facilities and services to students including a library, sport facilities and/or activities, as well as administrative services. Antonin Scalia Law School, previously George Mason University School of Law, is the law school of George Mason University, a state university in Virginia, United States.  The law school is located in Arlington, roughly fifteen miles east-northeast of the university's main campus in Fairfax. The George Mason Patriots men's soccer team is a varsity intercollegiate athletic team of George Mason University in Fairfax, Virginia, United States.  The team is a member of the Atlantic 10 Conference, which is part of the National Collegiate Athletic Association's Division I.  George Mason's first men's soccer team was fielded in 1968.  The team plays its home games at George Mason Stadium in Fairfax, Virginia.  The Patriots are coached by Greg Andrulis. George Mason University (Mason) is the largest public research university in the U.S. state of Virginia.  The university was founded as a branch of the University of Virginia in 1949 and became an independent institution in 1972.  Four campuses are located in Virginia, with another in Songdo, South Korea inside the Incheon Free Economic Zone.  Three of the four campuses within Virginia are within the Northern Virginia section of the Piedmont, and one is in the Blue Ridge Mountains region.  On-campus housing options exist at all campus locations except Arlington.  The university recognizes 500 student groups as well as 41 fraternities and sororities.  Today, the Carnegie Classification of Institutions of Higher Education R1 research institution is recognized for its programs in economics, law, creative writing, computer science, and business.  Mason faculty have twice won the Nobel Memorial Prize in Economics.
Answer: public research university