user: Question: List the total number of institutions founded in Rock Island, Illinois.
Columns: ['Institution', 'Location', 'Founded', 'Years in IIAC (approx.)', 'Team Nickname']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['Illinois State University', 'Normal, Illinois', 1857.0, '1910–1970', 'Redbirds']
SQL:

assistant: SELECT COUNT("Founded") FROM "Table" WHERE "Location" = 'Rock Island, Illinois';