user: Question: How many years have a Pick of 12, and a Position of dt, and a College of penn state?
Columns: ['Year', 'Pick', 'Player', 'Position', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1937.0, '10', 'Johnny Drake', 'FB', 'Purdue']
SQL:

assistant: SELECT COUNT("Year") FROM "Table" WHERE "Pick" = '12' AND "Position" = 'dt' AND "College" = 'penn state';