CREATE TABLE table_51212 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

What was the venue when Collingwood was the home team?
SELECT "Venue" FROM table_51212 WHERE "Home team" = 'collingwood'
SELECT "Venue" FROM "table_51212" WHERE "Home team" = 'collingwood'