user: Question: What method has Randy Couture as the opponent?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Loss', '8–5', 'Matt Lindland', 'Submission (guillotine choke)', 1.0, '3:38', 'California , United States']
SQL:

assistant: SELECT "Method" FROM "Table" WHERE "Opponent" = 'Randy Couture';