user: Question: How many colleges provided players with positions LB?
Columns: ['Pick #', 'CFL Team', 'Player', 'Position', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [17.0, 'Winnipeg Blue Bombers', 'Jeff Pilon', 'OL', 'Syracuse']
SQL:

assistant: SELECT COUNT("College") FROM "Table" WHERE "Position" = 'LB';