user: Question: Who is the opponent of the December 18, 1994 game?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'TV Time', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 4, 1994', 'New England Patriots', 'W 39–35', 'NBC 4:15pm', '71,023']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = 'December 18, 1994';