user: Question: What is the average round of the match in the Hero's 9 event with a time of 5:00?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Draw', '6-7-2', 'Koji Oishi', 'Decision (draw)', 'Pancrase - Passion Tour 11', 2.0, '5:00', 'Tokyo , Japan']
SQL:

assistant: SELECT AVG("Round") FROM "Table" WHERE "Time" = '5:00' AND "Event" = 'Hero''s 9';