human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Entrant, Constructor, Chassis, Engine †, Tyre, Driver, Rounds
###Question: what is the engine when the rounds ar all, the tyre is m and the driver is david coulthard?
gpt
SELECT Engine † FROM table WHERE Rounds = all AND Tyre = m AND Driver = david coulthard