user: Question: What is the round number of the round against Melbourne on Saturday, 4 April 2:10pm?
Columns: ['Round', 'Date', 'Opponent', 'Home/Away', 'Score (Collingwoods score is in bold)', 'Result (includes margin)', 'Venue', 'Position on Ladder']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Sunday, 28 March 2:10pm', 'Western Bulldogs', 'Away', '13.15 (93) - 19.15 (129)', 'Won by 36 points', 'Etihad Stadium', '5th']
SQL:

assistant: SELECT "Round" FROM "Table" WHERE "Opponent" = 'Melbourne' AND "Date" = 'Saturday, 4 April 2:10pm';