user: Question: Who had the highest rebounds of the game on April 7?
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: [73.0, 'April 2', 'New Orleans/Oklahoma City', 'L 113–120 (2OT)', 'Morris Peterson (27)', 'Charlie Villanueva (18)', 'Mike James (10)', 'Air Canada Centre 15,079', '26–47']
SQL:

assistant: SELECT "High rebounds" FROM "Table" WHERE "Date" = 'April 7';