user: Question: What was the opponent of the home team of Essendon?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '16.20 (116)', 'St Kilda', '6.14 (50)', 'Punt Road Oval', 25000.0, '30 April 1932']
SQL:

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