user: Question: What is the smallest round resulting in a Draw with an Opponent of Mari Kaneko?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Round', 'Time']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Win', '29–2–2', 'Yukiko Seki', 'Submission (armbar)', 1.0, '1:32']
SQL:

assistant: SELECT MIN("Round") FROM "Table" WHERE "Res." = 'Draw' AND "Opponent" = 'Mari Kaneko';