user: Question: At the VFL Reserves, who was the opponent when the score was 18.6 (114) - 21.14 (140)?
Columns: ['Year', 'Competition', 'Opponent', 'Score', 'Venue']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Year', 'Competition', 'Opponent', 'Score', 'Venue']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Competition" = 'VFL Reserves' AND "Score" = '18.6 (114) - 21.14 (140)';