user: Question: Which Position has an Overall larger than 147, and a Pick # of 21?
Columns: ['Round', 'Pick #', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 21.0, 21.0, 'Renaldo Wynn', 'Defensive Tackle', 'Notre Dame']
SQL:

assistant: SELECT "Position" FROM "Table" WHERE "Overall" > 147.0 AND "Pick #" = 21.0;