user: Question: Name the number of horizontal when framerate hz is 25
Columns: ['Vertical', 'Horizontal', 'Aspect ratio', 'Pixel aspect ratio', 'Form of scanning', 'Framerate ( Hz )']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [576.0, 352.0, '4:3 or 16:9', 'non-square', 'interlaced', '25 (50 fields/s)']
SQL:

assistant: SELECT COUNT("Horizontal") FROM "Table" WHERE "Framerate ( Hz )" = '25';