Table schema:
CREATE TABLE table_name_68 (green_rating VARCHAR, engine_capacity VARCHAR, manufacturer VARCHAR, l_100km_urban__cold_ VARCHAR, mpg_us_urban VARCHAR)

Question: What is the green rating for the vehicle with L/100km urban (cold) over 10.9, mpg in the US (urban) over 14.1, manufacturer of Volkswagen, and engine capacity under 3189?
SQL: SELECT green_rating FROM table_name_68 WHERE l_100km_urban__cold_ > 10.9 AND mpg_us_urban > 14.1 AND manufacturer = "volkswagen" AND engine_capacity < 3189