user: Question: Who is the away team with a score of 7.8 (50)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '6.5 (41)', 'Melbourne', '12.11 (83)', 'Kardinia Park', 17934.0, '25 June 1960']
SQL:

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