Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Letters | Organization | Nickname | Founding Date | Founding University | Type |
| --- | --- | --- | --- | --- | --- |
| ΑΕΠ | Alpha Epsilon Pi 1 | "AEPi" | 1913-11-07 | New York University | Fraternity |
| ΑΕΦ | Alpha Epsilon Phi 2 | "AEPhi" | 1909-10-24 | Barnard College | Sorority |
| ΣΑΕΠ | Sigma Alpha Epsilon Pi 3 | "Sigma" | 1998-10-01 | University of California, Davis | Sorority |
| ΣΑΜ | Sigma Alpha Mu 1 | "Sammy" | 1909-11-26 | City College of New York | Fraternity |
| ΣΔΤ | Sigma Delta Tau 2 | "SDT" or "Sig Delts" | 1917-03-25 | Cornell University | Sorority |
| ΤΕΦ | Tau Epsilon Phi 1 | "TEP", "Tau Boys" | 1910-10-10 | Columbia University | Fraternity |
| ΖΒΤ | Zeta Beta Tau 1 | "ZBT" | 1898-12-29 | City College of New York | Fraternity |
Question:
What was the founding university of the organization Tau Epsilon Phi 1?
Answer:
Columbia University