Information:  - The colonial colleges are nine institutions of higher education chartered in the American Colonies before the United States of America became a sovereign nation after the American Revolution. These nine have long been considered together, notably in the survey of their origins in the 1907 "The Cambridge History of English and American Literature". Seven of the nine colonial colleges are part of the Ivy League athletic conference: Harvard, Yale, Penn, Princeton, Columbia, Brown, and Dartmouth. (The eighth member of the Ivy League, Cornell University, was founded in 1865.)  - Herbert Saul Wilf ( June 13 , 1931 -- January 7 , 2012 ) was a mathematician , specializing in combinatorics and graph theory . He was the Thomas A. Scott Professor of Mathematics in Combinatorial Analysis and Computing at the University of Pennsylvania . He wrote numerous books and research papers . Together with Neil Calkin he founded The Electronic Journal of Combinatorics in 1994 and was its editor - in - chief until 2001 .  - The University of Pennsylvania (commonly known as Penn or UPenn) is a private, Ivy League university located in Philadelphia, Pennsylvania, United States. Incorporated as "The Trustees of the University of Pennsylvania", Penn is one of 14 founding members of the Association of American Universities and one of the nine original colonial colleges.  - The Ivy League is a collegiate athletic conference comprising sports teams from eight private institutions of higher education in the Northeastern United States. The conference name is also commonly used to refer to those eight schools as a group beyond the sports context. The eight institutions are Brown University, Columbia University, Cornell University, Dartmouth College, Harvard University, the University of Pennsylvania, Princeton University, and Yale University. The term "Ivy League" has connotations of academic excellence, selectivity in admissions, and social elitism.  - Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east.    Given the information above, choose from the list below the object entity that exhibits the relation 'place of burial' with the subject 'herbert wilf'.  Choices: - dartmouth  - philadelphia  - york
Answer:
philadelphia