Question: Which university is located in Thailand, Mahidol University or Universidad Nacional del Sur?

Context paragraphs:
College of Music, Mahidol University: The College of Music, Mahidol University or Wittayalaiduliyangkasilp (Thai: วิทยาลัยดุริยางคศิลป์ is a music school in Phutthamonthon, Nakhon Pathom, (in the western suburbs of Bangkok, Thailand).  The College of Music is a professional school within Mahidol University.  It was established in 1994 by Mahidol University under the leadership of Sugree Charoensook.

Antonio Monteiro (mathematician): António Aniceto Monteiro (1907–1980) was a mathematician born in Portuguese Angola who later emigrated to Brazil in 1945 and finally to Argentina in 1950.  Monteiro is best known for establishing a school of algebraic logic at Universidad Nacional del Sur, Bahía Blanca, Argentina.  His efforts to promote theoretical computer science research in Argentina were less successful.

Universidad Nacional del Sur: The National University of South (in Spanish: "Universidad Nacional del Sur", UNS) is the largest national university in southern Argentina.  Its motto is "Ardua Veritatem", which means "through the difficulties to the truth".

College of Management, Mahidol University: College of Management, Mahidol University, also known as CMMU, is the business school of Mahidol University, located in Bangkok, Thailand.  Established in 1997, CMMU offers master's and Ph.D. degree programmes in management studies.

National University of the Center of Peru: The National University of the Center of Peru (Universidad Nacional del Centro del Perú), UNCP for short, is the largest public university of the center of Peru.  It was founded by supreme decree law no. 46 on December 16, 1959.  Apart from its main campus in El Tambo, Huancayo, the university runs decentralized establishments in Junín, Satipo, and Tarma.  The first rector was distinguished Peruvian geographer Javier Pulgar Vidal.  During the 1960s, several former establishments, such as those in Lima (Universidad Nacional Federico Villareal) and Cerro de Pasco (Universidad Nacional Daniel Alcides Carrión), were transformed into universities.

Mahidol University: Mahidol University (MU), an autonomous research institution in Thailand, had its origin in the establishment of Siriraj Hospital in 1888.  Becoming the University of Medical Science in 1943, it has been recognized as the country's fourth public university.  The university was later renamed in 1969 by King Bhumibol Adulyadej after his father, Prince Mahidol of Songkhla, who is widely regarded as "Father of Modern Medicine and Public Health of Thailand."  The university originally focused on health sciences but also expanded to other fields in recent decades.  It hosted Thailand's first medical school, the Siriraj Medical School.  Today, MU offers a range of graduate (mostly international) and undergraduate programs from natural sciences to liberal arts with remote campuses in Kanchanaburi, Nakhon Sawan, and Amnat Charoen provinces.  In terms of fiscal budget and portion of budget spent on research programs, MU receives the highest budget of any public university in Thailand: about $147 million each year, most of which is granted for graduate research programs.  Mahidol University was ranked Thailand's #1 university in 2011 by QS Asian University Rankings.

Guillermo Simari: Guillermo Ricardo Simari is an Argentine computer scientist.  He is an international leader in Defeasible Reasoning and Argument (Logic) (see also Argumentation Theory), a national leader in Logic Programming in Argentina, and one of the leaders of Artificial Intelligence in South America.  He has headed the Artificial Intelligence Research and Development Lab (LIDIA) at Universidad Nacional del Sur (Argentina) since 1990, where he has personally mentored many internationally known students, such as Juan Carlos Augusto, Alejandro J. García, Marcelo A. Falappa, Carlos I. Chesñevar, Ana G. Maguitman, Pablo R. Fillottrani, Diego C. Martínez, Marcelo L. Errecalde, María Laura Cobo, and Sergio Alejandro Gómez, who have present impact in both the Spanish speaking and English speaking AI communities.

Club Universidad Nacional Premier: Club Universidad Nacional A.C. Premier is a professional football team that plays in the Mexican Football League.  They are currently playing in the Liga Premier (Mexico's Third Division).  Club Universidad Nacional A.C. Premier is affiliated with Club Universidad Nacional who plays in the Liga MX.  The games are held in the city of Coyoacán in the Estadio La Cantera.

Prince Mahidol Hall: Prince Mahidol Hall (Thai: มหิดลสิทธาคาร "Mahidol Sittha-kharn" ) is a concert hall of Mahidol University and the largest concert hall of Thailand, located in Phutthamonthon District, Nakhon Pathom.  The hall was named after prince Mahidol Adulyadej.

Mahidol Wittayanusorn School: Mahidol Wittayanusorn School (Thai: โรงเรียนมหิดลวิทยานุสรณ์ ; rtgs: Mahidon Witthayanuson ), also known colloquially as Mahidol Wit, Mahidol Witt, MWIT or MWITS, is a secondary school in Thailand.  On the Salaya Campus of Mahidol University in Nakhon Pathom Province, it enrols Mathayom 4–6 (grades 10–12) students, and is the first specialised science school in the country, designed to provide education for the development of gifted and talented students in science and mathematics.  The school is unique among Thai schools in that it functions as an autonomous public organisation, and receives direct funding from the government of up to 100,000 baht per student, which means that all students are awarded a full scholarship for three years, including accommodation.  Since its conception in 2000, the school has rapidly become one of the most prominent schools in Thailand, with intense competition for enrolment.  (20,871 students sat the school's entrance examination in 2009, while the school enrols 240 students annually.)

Supporting paragraphs: Mahidol University Universidad Nacional del Sur
Answer: Mahidol University