Instruct: What's the total L/100km extra urban fueled by diesel, when the mpg-UK combines is more than 19.2, mpg-US is less than 50 and the L/100m combined is less than 5.7?
Output: SELECT COUNT L/100km Extra-Urban FROM table WHERE mpg-UK Combined > 19.2 AND L/100km Combined < 5.7 AND Fuel Type = diesel AND mpg-US Combined < 50