Who was the opponent at the game at Sullivan Stadium before week 11?
CREATE TABLE table_34992 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Record" text,
    "Game Site" text,
    "Attendance" real
)
SELECT "Opponent" FROM table_34992 WHERE "Week" < '11' AND "Game Site" = 'sullivan stadium'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Who was the opponent at the game at Sullivan Stadium before week 11? ### Input: CREATE TABLE table_34992 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Record" text,
    "Game Site" text,
    "Attendance" real
) ### Response: SELECT "Opponent" FROM table_34992 WHERE "Week" < '11' AND "Game Site" = 'sullivan stadium'