user: Question: Name the number of high rebounds for United Center 19,335
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: [46.0, 'February 2', 'L.A. Clippers', 'L 82–90 (OT)', 'Luol Deng (18)', 'Tyrus Thomas (9)', 'Derrick Rose (4)', 'United Center 19,335', '23–23']
SQL:

assistant: SELECT COUNT("High rebounds") FROM "Table" WHERE "Location Attendance" = 'United Center 19,335';