user: Question: Name the total number of rounds for gina carano
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Win', '7-4', 'Ashley Sanchez', 'Decision (unanimous)', 'RFA 2 - Yvel vs. Alexander', 3.0, '5:00', 'Kearney, Nebraska , United States']
SQL:

assistant: SELECT SUM("Round") FROM "Table" WHERE "Opponent" = 'gina carano';