CREATE TABLE table_51924 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Date" TEXT)

Which team has an Away team of carlton?
SELECT "Home team" FROM table_51924 WHERE "Away team" = 'carlton'
SELECT "Home team" FROM "table_51924" WHERE "Away team" = 'carlton'