CREATE TABLE table_18850 ("Result" CLOB, "Date" CLOB, "Race" CLOB, "Venue" CLOB, "Group" CLOB, "Distance" CLOB, "Weight  ( kg ) " FLOAT, "Jockey" CLOB, "Winner/2nd" CLOB)

What was the distance of the race in which Northerly raced in group G3?
SELECT "Distance" FROM table_18850 WHERE "Group" = 'G3'
SELECT "Distance" FROM "table_18850" WHERE "Group" = 'G3'