user: Question: What is the number of the player who went to Southern University?
Columns: ['Player', 'No.(s)', 'Height in Ft.', 'Position', 'Years for Rockets', 'School/Club Team/Country']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Jackson, Bobby Bobby Jackson', '8', '6-1', 'Guard', '2008', 'Minnesota']
SQL:

assistant: SELECT "No.(s)" FROM "Table" WHERE "School/Club Team/Country" = 'Southern University';