user: Question: When the home team scored 7.8 (50), how many away team scores were recorded?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Ground', 'Crowd', 'Date', 'Time']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Fremantle', '7.8 (50)', 'Hawthorn', '14.12 (96)', 'Subiaco Oval', 12088.0, 'Thursday 11 February 1999', '6:00 PM']
SQL:

assistant: SELECT COUNT("Away team score") FROM "Table" WHERE "Home team score" = '7.8 (50)';