user: ### NOW ANSWER:
Question: When 4 is the v-band what is the overall amount of ka-bands?
Columns: ['Property', 'K-band', 'Ka-band', 'Q-band', 'V-band', 'W-band']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Central wavelength (mm)', '13', '9.1', '7.3', '4.9', '3.2']
SQL:

assistant: SELECT COUNT("Ka-band") FROM "Table" WHERE "V-band" = '4';