user: Question: What is the total pick number from round 2?
Columns: ['Pick', 'Round', 'Player', 'Position', 'School']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [30.0, '2', 'Keith Browner', 'Linebacker', 'USC']
SQL:

assistant: SELECT SUM("Pick") FROM "Table" WHERE "Round" = '2';