Table: octagonal_races
Columns: result
date
race
venue
group
distance
weight_kg
jockey
winner_2nd

Question: When was the golden slipper race?
SQL: SELECT "date" FROM octagonal_races WHERE "race" = 'golden slipper'

Question: In which races did the jockey weigh less than 55.5 kg?
SQL: SELECT "race" FROM octagonal_races WHERE "weight_kg" < 55.5

Question: What was the result of the Todman stakes race at rosehill?
SQL: SELECT "result" FROM octagonal_races WHERE "venue" = 'rosehill' AND "race" = 'todman stakes'