What is the smallest converted value at number 19?
CREATE TABLE table_1975 (
    "Number" text,
    "Previous Number(s)" real,
    "Previous Class" text,
    "Converted" real,
    "Use" text,
    "Withdrawn" real,
    "Disposal" text
)
SELECT MIN("Converted") FROM table_1975 WHERE "Number" = '19'
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: What is the smallest converted value at number 19? ### Input: CREATE TABLE table_1975 (
    "Number" text,
    "Previous Number(s)" real,
    "Previous Class" text,
    "Converted" real,
    "Use" text,
    "Withdrawn" real,
    "Disposal" text
) ### Response: SELECT MIN("Converted") FROM table_1975 WHERE "Number" = '19'