Question: Which college did Minxin Pei attend that was not a member of Claremont Colleges located in Claremont, California, United States.

Context paragraphs:
Scripps College: Scripps College is a liberal arts women's college founded in 1926 in Claremont, California, United States, with an enrollment of 989 students as of 2017.  It is a member of the Claremont Colleges, a liberal arts consortium.

Pomona College: Pomona College is a private, nonsectarian, coeducational, liberal arts college in Claremont, California, United States.  Established in 1887, it is the founding member of the Claremont Colleges consortium.  Pomona is a four-year undergraduate institution, and enrolled approximately 1,700 students representing 49 states and 63 countries in Fall 2017.  The college maintains 48 majors and 600 courses, though students have access to nearly 2000 additional courses at the other Claremont Colleges.

Claremont Colleges: The Claremont Colleges are an American consortium of five undergraduate and two graduate schools of higher education located in Claremont, California, a city 35 mi east of downtown Los Angeles and 25 mi west of downtown San Bernardino.  Unlike most other collegiate consortia, such as the Five College Consortium in Massachusetts and the Tri-College Consortium in Pennsylvania, the Claremont College campuses are adjoining and within walking distance of one another.  Put together, the campuses cover roughly 1 mi2 .

Minxin Pei: Minxin Pei () is an expert on governance in the People's Republic of China, U.S.-Asia relations, and democratization in developing nations.  He currently serves as the director of the Keck Center for International and Strategic Studies at Claremont McKenna College and is a non-resident senior fellow with the Asia program at the German Marshall Fund of the United States.  He was formerly a senior associate with the Asia Program at the Carnegie Endowment for International Peace.  Pei earned his bachelor's degree in English from the Shanghai International Studies University, and a master's degree and PhD in Political Science from Harvard University.  In addition, he holds an M.F.A. from the University of Pittsburgh.  He is a Tom and Margot Pritzker '72 Professor of Government and George R. Roberts Fellow and Director of the Keck Center for International and Strategic Studies.

Donald McKenna (philanthropist): Donald Carnegie McKenna (1907 – 27 November 1997) was an American businessperson and philanthropist.  He is best remembered as a founder of and major donor to the Claremont McKenna College, a liberal arts college and member of the Claremont Colleges, located in Claremont, California.

Claremont McKenna College: Claremont McKenna College (CMC) is an independent, coeducational and private liberal arts college with a curricular emphasis on economics, finance, international relations, government and public affairs.  CMC is also a member of the Claremont Colleges located in Claremont, California, United States.

Robert J. Bernard Field Station: The 85 acre Robert J. Bernard Biological Field Station (BFS) is located on the north side of Foothill Boulevard between College Avenue and Mills Avenue in Claremont, California.  The BFS provides facilities and ecological communities for high-quality teaching and research in biological, environmental, and other sciences to the students, faculty, and staff of the Claremont Colleges.  It may also be used by members of other academic institutions and by public groups for educational purposes.  The BFS is a member of the Organization of Biological Field Stations (OBFS).

Claremont Graduate University: Claremont Graduate University (CGU) is a private, all-graduate research university located in Claremont, California, a city 35 mi east of downtown Los Angeles.  Founded in 1925, CGU is a member of the Claremont Colleges which includes five undergraduate (Pomona College, Claremont McKenna College, Harvey Mudd College, Scripps College, Pitzer College) and two graduate (CGU and Keck Graduate Institute of Applied Life Sciences) institutions of higher education.  Adjoining and within walking distance of one another, design was based on that of Oxford University and Cambridge University.

Harvey Mudd College: Harvey Mudd College (HMC) is a private residential liberal arts college of science, engineering and mathematics, founded in 1955 and located in Claremont, California, United States.  It is one of the institutions of the contiguous Claremont Colleges, which share adjoining campus grounds.  The college's mission is "to educate engineers, scientists, and mathematicians well versed in all of these areas and in the humanities and the social sciences so that they may assume leadership in their fields with a clear understanding of the impact of their work on society".

Pitzer College: Pitzer College is a private residential liberal arts college located in Claremont, California, United States.  One of the Claremont Colleges, the college has a curricular emphasis on the social sciences, behavioral sciences, international programs, and media studies.

Supporting paragraphs: Minxin Pei Claremont McKenna College
Answer: University of Pittsburgh