user: Question: What is the lowest overall with more than 17 rounds?
Columns: ['Round', 'Overall', 'Player', 'Position', 'College']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [2.0, 34.0, 'Charles Philyaw', 'DE', 'Texas Southern']
SQL:

assistant: SELECT MIN("Overall") FROM "Table" WHERE "Round" > 17.0;