user: Question: When North Melbourne played as the home team, what was the away team score?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Fitzroy', '16.15 (111)', 'Geelong', '16.18 (114)', 'Junction Oval', 10300.0, '17 June 1978']
SQL:

assistant: SELECT "Away team score" FROM "Table" WHERE "Home team" = 'North Melbourne';