user: Question: How many color systems has a bit rate of 5.734?
Columns: ['Standard', 'Color system', 'Informational CVBS Lines', 'Bit rate [ Mbit/s ]', 'Waveform', 'Bits per line (including run-in)', 'Max. Characters (per page row)']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['A (France)', 'SECAM', '7–18', '6.203', 'squared Sine wave', 320.0, 35.0]
SQL:

assistant: SELECT COUNT("Color system") FROM "Table" WHERE "Bit rate [ Mbit/s ]" = '5.734';