user: Question: What is the Opponent when the location was Groves Stadium • Winston-Salem, NC, with a result of T 17-17?
Columns: ['Date', 'Opponent', 'Location', 'Result', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['09/09/1989', 'Appalachian State', 'Groves Stadium • Winston-Salem, NC', 'L 10-15', 30200.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Location" = 'Groves Stadium • Winston-Salem, NC' AND "Result" = 'T 17-17';