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:
| School | Location(s) | Control | Type | Accreditation | Founded | Enrollment |
| --- | --- | --- | --- | --- | --- | --- |
| Baptist Theological Seminary at Richmond | Richmond | Private | Special focus | none | 1991 | Unknown |
| Cordoba University | Ashburn | Private ( ic Islam ) | Uncategorized | none | Unknown | Unknown |
| Hartland College | Rapidan | Private | Uncategorized | none | 1983 | Unknown |
| John Leland Center for Theological Studies | Falls Church | Private | Uncategorized | none | 1998 | Unknown |
| Virginia Theological Seminary | Alexandria | Private | Uncategorized | none | 1818 | Unknown |
Question:
What is the control type which was founded in 1991?
Answer:
Private