CREATE TABLE table_55738 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What home team played Collingwood as the away team?
SELECT "Home team" FROM table_55738 WHERE "Away team" = 'collingwood'
SELECT "Home team" FROM "table_55738" WHERE "Away team" = 'collingwood'