CREATE TABLE table_12019 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the away team at corio oval?
SELECT "Away team" FROM table_12019 WHERE "Venue" = 'corio oval'
SELECT "Away team" FROM "table_12019" WHERE "Venue" = 'corio oval'