user: Question: Who is the home side when Geelong is the away side?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Melbourne', '13.24 (102)', 'Richmond', '19.17 (131)', 'MCG', 22272.0, '30 April 1977']
SQL:

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