user: Question: Which Opponent has a Week larger than 3, and a Game site of Mile High Stadium, and a Record of 3–3?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Game site', 'Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Sep 7', 'at Philadelphia Eagles', 'L 6–27', "Veteran's Stadium", 70307.0, '0–1']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Week" > 3.0 AND "Game site" = 'Mile High Stadium' AND "Record" = '3–3';