Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_181892_4 (laps_led INTEGER, chassis VARCHAR)
### Question:
What is the largest laps led with the lotus-ford 34/3 chassis?
### Answer:
SELECT MAX(laps_led) FROM table_181892_4 WHERE chassis = "Lotus-Ford 34/3"