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_74 (laps INTEGER, rider VARCHAR, grid VARCHAR, bike VARCHAR)
### Question:
Tell me the average Laps for grid larger than 12 and bikes of ducati 999rs for dean ellison
### Answer:
SELECT AVG(laps) FROM table_name_74 WHERE grid > 12 AND bike = "ducati 999rs" AND rider = "dean ellison"