user: Question: What is the largest round number for the dt position when the pick number is bigger than 181?
Columns: ['Round', 'Pick', 'Player', 'Position', 'School/Club Team']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 13.0, 'Jonathan Stewart', 'RB', 'Oregon']
SQL:

assistant: SELECT MAX("Round") FROM "Table" WHERE "Position" = 'dt' AND "Pick" > 181.0;