text: 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_99 (laps INTEGER, driver VARCHAR, grid VARCHAR)
  ### Question:
  what is the least laps when the driver is rolf stommelen and the grid is more than 18?
  ### Answer:
  SELECT MIN(laps) FROM table_name_99 WHERE driver = "rolf stommelen" AND grid > 18