user: Question: Who was the home team when Geelong was the away team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Footscray', '8.10 (58)', 'Melbourne', '7.19 (61)', 'Western Oval', 12000.0, '19 July 1930']
SQL:

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