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_6 (laps INTEGER, grid VARCHAR, constructor VARCHAR, driver VARCHAR)
### Question:
What is the average number of laps for mika salo's arrows car with a grid over 13?
### Answer:
SELECT AVG(laps) FROM table_name_6 WHERE constructor = "arrows" AND driver = "mika salo" AND grid > 13