What is the assumed office date of the prime minister ranked 22?
CREATE TABLE table_61918 (
    "Rank:" real,
    "Prime Minister:" text,
    "Party:" text,
    "Assumed Office:" text,
    "Left Office:" text,
    "TOTAL Time in Office:" text
)
SELECT "Assumed Office:" FROM table_61918 WHERE "Rank:" = '22'
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 assumed office date of the prime minister ranked 22? ### Input: CREATE TABLE table_61918 (
    "Rank:" real,
    "Prime Minister:" text,
    "Party:" text,
    "Assumed Office:" text,
    "Left Office:" text,
    "TOTAL Time in Office:" text
) ### Response: SELECT "Assumed Office:" FROM table_61918 WHERE "Rank:" = '22'