Who made the challenge in the Australian Grand Prix?
CREATE TABLE table_25531112_2 (challenge VARCHAR, event VARCHAR)
SELECT challenge FROM table_25531112_2 WHERE event = "Australian Grand Prix"
### Context: CREATE TABLE table_25531112_2 (challenge VARCHAR, event VARCHAR) ### Question: Who made the challenge in the Australian Grand Prix? ### Answer: SELECT challenge FROM table_25531112_2 WHERE event = "Australian Grand Prix"