CREATE TABLE table_51921 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Date" CLOB)

Which home team has a Venue of corio oval?
SELECT "Home team" FROM table_51921 WHERE "Venue" = 'corio oval'
SELECT "Home team" FROM "table_51921" WHERE "Venue" = 'corio oval'