user: Question: what is the total number of nicknames for Southwestern College?
Columns: ['Institution', 'Location', 'Founded', 'Type', 'Enrollment', 'Nickname', 'Joined']
Types: ['text', 'text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['Bethany College', 'Lindsborg, Kansas', 1881.0, 'Private', 500.0, 'Swedes', '1902']
SQL:

assistant: SELECT COUNT("Nickname") FROM "Table" WHERE "Institution" = 'Southwestern College';