human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Rd., Race, Pole position, Fastest lap, Most laps led, Winning driver, Winning team
###Question: Who had the pole(s) when esteban guerrieri led the most laps round 8a and josef newgarden had the fastest lap?
gpt
SELECT Pole position FROM table WHERE Most laps led = Esteban Guerrieri AND Fastest lap = Josef Newgarden AND Rd. = 8A