user: Question: Which is the lowest Round with the Opponent, paul cahoon and Location, amsterdam, netherlands?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Loss', '27-11-1 (1)', 'Mamed Khalidov', 'Submission (guillotine choke)', 'KSW 23', 1.0, '2:09', 'Gdansk , Ergo Arena, Poland']
SQL:

assistant: SELECT MIN("Round") FROM "Table" WHERE "Opponent" = 'paul cahoon' AND "Location" = 'amsterdam, netherlands';