user: Question: Name the Round that has Res of Win and an Opponent of Demian Maia?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Loss', '13–4', 'Lyoto Machida', 'KO (head kick)', 'UFC Fight Night: Machida vs. Munoz', 1.0, '3:10', 'Manchester, England , United Kingdom']
SQL:

assistant: SELECT "Round" FROM "Table" WHERE "Res." = 'Win' AND "Opponent" = 'Demian Maia';