user: Question: What was the opponents score when Carlton played at home?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '7.9 (51)', 'North Melbourne', '10.13 (73)', 'Glenferrie Oval', 10136.0, '20 May 1967']
SQL:

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