user: Question: How many players are at the DT position? 
Columns: ['Pick #', 'CFL Team', 'Player', 'Position', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [19.0, 'Ottawa Renegades', 'Patrick Kabongo', 'DT', 'Nebraska']
SQL:

assistant: SELECT COUNT("Player") FROM "Table" WHERE "Position" = 'DT';