CREATE TABLE table_33622 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was North Melbourne's score when they were the home team?
SELECT "Away team score" FROM table_33622 WHERE "Away team" = 'north melbourne'
SELECT "Away team score" FROM "table_33622" WHERE "Away team" = 'north melbourne'