CREATE TABLE table_32578 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who was the home team when Carlton was the away team?
SELECT "Home team" FROM table_32578 WHERE "Away team" = 'carlton'
SELECT "Home team" FROM "table_32578" WHERE "Away team" = 'carlton'