human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Driver, Constructor, Laps, Time/Retired, Grid
###Question: What is the largest number of laps with a Grid larger than 14, a Time/Retired of + 2 laps, and a Driver of helmut marko?
gpt
SELECT MAX Laps FROM table WHERE Grid > 14 AND Time/Retired = + 2 laps AND Driver = helmut marko