In 1961, what was the Chassis when the points were lower than 6?
CREATE TABLE table_71423 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" real
)
SELECT "Chassis" FROM table_71423 WHERE "Points" < '6' AND "Year" = '1961'
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: In 1961, what was the Chassis when the points were lower than 6? ### Input: CREATE TABLE table_71423 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" real
) ### Response: SELECT "Chassis" FROM table_71423 WHERE "Points" < '6' AND "Year" = '1961'