user: Question: What is the total number of rounds with a 4-0 record?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Loss', '7-6-1', 'Kimo Leopoldo', 'TKO (broken toe)', 'WFA 2: Level 2', 1.0, '1:55']
SQL:

assistant: SELECT COUNT("Round") FROM "Table" WHERE "Record" = '4-0';