user: Question: What is the total number of overall draft picks for player whose position is c and was picked after round 9?
Columns: ['Round', 'Overall', 'Player', 'Position', 'College']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 4.0, 'Bruce Clark', 'DT', 'Penn State']
SQL:

assistant: SELECT SUM("Overall") FROM "Table" WHERE "Position" = 'c' AND "Round" > 9.0;