Question: California Institute of Technology and University of Tennessee system, are in which country?

Context paragraphs:
University of Tennessee: The University of Tennessee (also referred to as The University of Tennessee, Knoxville, UT Knoxville, UTK, or UT) is a public sun- and land-grant university in Knoxville, Tennessee, United States.  Founded in 1794, two years before Tennessee became the 16th state, it is the flagship campus of the University of Tennessee system, with nine undergraduate colleges and eleven graduate colleges.  It hosts almost 28,000 students from all 50 states and more than 100 foreign countries.  In its 2017 universities ranking, "U.S. News & World Report" ranked UT 103rd among all national universities and 46th among public institutions of higher learning.  Seven alumni have been selected as Rhodes Scholars.  James M. Buchanan, M.S. '41, received the 1986 Nobel Prize in Economics.  UT's ties to nearby Oak Ridge National Laboratory, established under UT President Andrew Holt and continued under the UT–Battelle partnership, allow for considerable research opportunities for faculty and students.

Guruswami Ravichandran: Guruswami Ravichandran (born May 8, 1959) is a professor of Aerospace and Mechanical Engineering at California Institute of Technology.  He also served as the director of Guggenheim Aeronautical Laboratory (GALCIT) at California Institute of Technology from 2009 to 2015.

William Andrew Goddard III: William Andrew Goddard III (born March 29, 1937 in El Centro, California, U.S.) is the Charles and Mary Ferkel Professor of Chemistry and Applied Physics, and Director, Materials and Process Simulation Center at the California Institute of Technology.  He obtained his B.S. from the University of California, Los Angeles, in 1960 and his Ph.D. from the California Institute of Technology, 1965.  After his Ph.D. he remained at the California Institute of Technology as Arthur Amos Noyes Research Fellow (1964–66), Professor of Theoretical Chemistry (1967–78) and Professor of Chemistry & Applied Physics (1978-).

University of Tennessee system: The University of Tennessee system (UT system) is one of two public university systems, the other being the Tennessee Board of Regents (TBR), in the state of Tennessee.  It consists of three primary campuses in Knoxville, Chattanooga, and Martin; a health sciences campus in Memphis; a research institute in Tullahoma; and various extensions throughout the state.

University of Tennessee at Chattanooga: The University of Tennessee at Chattanooga, (variously called UT-Chattanooga, UTC, or Chattanooga) is a public university located in Chattanooga, Tennessee, United States.  The university is one of three universities and two other affiliated institutions in the University of Tennessee System (UT System).

K. Mani Chandy: Kanianthra Mani Chandy (born October 25, 1944) is the Simon Ramo Professor of Computer Science at the California Institute of Technology (Caltech).  He has been the Executive Officer of the Computer Science Department twice, and he has been a professor at Caltech since 1989.  He also served as Chair of the Division of Engineering and Applied Science at the California Institute of Technology.

University of Tennessee at Martin: The University of Tennessee at Martin (UT Martin, or UTM), located in Martin, Tennessee, in the United States, is one of the five campuses of the University of Tennessee system.  Prior to the acquisition of Lambuth University in Jackson by University of Memphis in 2011, UTM was the only public four-year university in West Tennessee outside of Memphis.

Edward McCaffery: Edward McCaffery (born c. 1958) is a tax law professor at the University of Southern California Law School and also a visiting professor of Law and Economics at the California Institute of Technology.  At USC he is Robert C. Packard Trustee Chair in Law and Professor of Law, Economics and Political Science.  He teaches Federal Income Taxation, Property, Intellectual Property, and Tax Law and Policy at USC, Law and Economics and Law and Technology at the California Institute of Technology.  He also teaches Corporate Taxation, Federal Income Taxation, Partnership Taxation, Property and a Tax Policy seminar.

Roy Dow: Roy Dow (born May 2, 1962) is the former head coach of the NCAA Division ll Pfeiffer University women's basketball program in Misenheimer, North Carolina.  Previously, Dow was the head coach at California Lutheran University, where he was at the helm from 2008-2013.  He led the women's program (Regals) to an 81-51 record, two conference championships and two NCAA tournament appearances.  Dow is third all-time in wins at Cal Lu (81) and second all-time in win percentage (.610).  Dow was also the head coach of men's basketball at the California Institute of Technology.  He coached at Cal Tech for six years (2002-2008).  Dow appeared in the documentary Quantum Hoops, a 2007 film directed by Rick Greenwald, that follows the California Institute of Technology's basketball team—the Caltech Beavers—in their attempts to end a 21-year losing streak during the final week of the 2006 basketball season.  The documentary premiered on January 26 at the 2007 Santa Barbara International Film Festival, where it won a Top 10 Audience Choice Award.  It first screened in theaters on November 2, 2007 in Pasadena, California, and was featured at the 30th Denver Film Festival on November 8.

California Institute of Technology: The California Institute of Technology (abbreviated Caltech) is a private doctorate-granting university located in Pasadena, California, United States.

Supporting paragraphs: California Institute of Technology University of Tennessee system
Answer: United States