CREATE TABLE table_52073 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What home team played against Richmond?
SELECT "Home team" FROM table_52073 WHERE "Away team" = 'richmond'
SELECT "Home team" FROM "table_52073" WHERE "Away team" = 'richmond'