user: Question: What college was the draft pick from who plays Center position?
Columns: ['Round', 'Pick #', 'Player', 'Position', 'College']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 16.0, 'Ronnie Harmon', 'Running back', 'Iowa']
SQL:

assistant: SELECT "College" FROM "Table" WHERE "Position" = 'Center';