CREATE TABLE table_56903 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Where was the game played where the home team was Collingwood?
SELECT "Venue" FROM table_56903 WHERE "Home team" = 'collingwood'
SELECT "Venue" FROM "table_56903" WHERE "Home team" = 'collingwood'