When 4 is the v-band what is the overall amount of ka-bands?
CREATE TABLE table_1941 (
    "Property" text,
    "K-band" text,
    "Ka-band" text,
    "Q-band" text,
    "V-band" text,
    "W-band" text
)
SELECT COUNT("Ka-band") FROM table_1941 WHERE "V-band" = '4'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When 4 is the v-band what is the overall amount of ka-bands? ### Input: CREATE TABLE table_1941 (
    "Property" text,
    "K-band" text,
    "Ka-band" text,
    "Q-band" text,
    "V-band" text,
    "W-band" text
) ### Response: SELECT COUNT("Ka-band") FROM table_1941 WHERE "V-band" = '4'