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_name_56 (laps INTEGER, driver VARCHAR, grid VARCHAR)
### Question:
Name the sum of Laps for lance reventlow with grid more than 16
### Answer:
SELECT SUM(laps) FROM table_name_56 WHERE driver = "lance reventlow" AND grid > 16