What is the high lap total for a grid less than 6, and a Time/Retired of halfshaft?
CREATE TABLE table_name_68 (
    laps INTEGER,
    grid VARCHAR,
    time_retired VARCHAR
)
SELECT MAX(laps) FROM table_name_68 WHERE grid < 6 AND time_retired = "halfshaft"
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 high lap total for a grid less than 6, and a Time/Retired of halfshaft? ### Input: CREATE TABLE table_name_68 (
    laps INTEGER,
    grid VARCHAR,
    time_retired VARCHAR
) ### Response: SELECT MAX(laps) FROM table_name_68 WHERE grid < 6 AND time_retired = "halfshaft"