Database: formula_1
Question: Which driver was in the no. 4 grid formation when starting the race in 1989's Australian Grand Prix? Please give his forename and surname.
SQL: SELECT T3.forename, T3.surname FROM races AS T1 INNER JOIN results AS T2 ON T2.raceId = T1.raceId INNER JOIN drivers AS T3 ON T3.driverId = T2.driverId WHERE T2.grid = 4 AND T1.name = 'Australian Grand Prix' AND T1.year = 1989