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_79 (grid INTEGER, driver VARCHAR, laps VARCHAR)
### Question:
What is the average grid of driver Christian Vietoris who has less than 12 laps?
### Answer:
SELECT AVG(grid) FROM table_name_79 WHERE driver = "christian vietoris" AND laps < 12