Table schema:
CREATE TABLE table_name_67 (rider VARCHAR, grid VARCHAR, bike VARCHAR, laps VARCHAR, time VARCHAR)

Question: What is the driver with the laps under 16, grid of 10, a bike of Yamaha YZF-R6, and ended with an accident?
SQL: SELECT rider FROM table_name_67 WHERE laps < 16 AND time = "accident" AND bike = "yamaha yzf-r6" AND grid = 10