Name the lowest frequency for brand of radio manantial
CREATE TABLE table_68583 (
    "Frequency" real,
    "Callsign" text,
    "Brand" text,
    "Format" text,
    "City of License" text,
    "Website" text,
    "Webcast" text
)
SELECT MIN("Frequency") FROM table_68583 WHERE "Brand" = 'radio manantial'
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: Name the lowest frequency for brand of radio manantial ### Input: CREATE TABLE table_68583 (
    "Frequency" real,
    "Callsign" text,
    "Brand" text,
    "Format" text,
    "City of License" text,
    "Website" text,
    "Webcast" text
) ### Response: SELECT MIN("Frequency") FROM table_68583 WHERE "Brand" = 'radio manantial'