CREATE TABLE table_4808 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who is the away side when north melbourne is the home side?
SELECT "Away team" FROM table_4808 WHERE "Home team" = 'north melbourne'
SELECT "Away team" FROM "table_4808" WHERE "Home team" = 'north melbourne'