user: Question: Who had the high rebounds, and how many did he have, for the game played on April 9?
Columns: ['Game', 'Date', 'Team', 'Score', 'High points', 'High rebounds', 'High assists', 'Location Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [76.0, 'April 2', 'Utah', 'W 114–104 (OT)', 'J. R. Smith (28)', 'Chris Andersen (10)', 'J. R. Smith (7)', 'Pepsi Center 17,969', '50–26']
SQL:

assistant: SELECT "High rebounds" FROM "Table" WHERE "Date" = 'April 9';