CREATE TABLE table_51262 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

If north melbourne played as the home team, who was the away team they played?
SELECT "Away team" FROM table_51262 WHERE "Home team" = 'north melbourne'
SELECT "Away team" FROM "table_51262" WHERE "Home team" = 'north melbourne'