When the result was l 13-7 ot, who was the opponent?
CREATE TABLE table_11906 (
    "Week" text,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Kickoff [a ]" text,
    "Game site" text,
    "Attendance" text,
    "Record" text
)
SELECT "Opponent" FROM table_11906 WHERE "Result" = 'l 13-7 ot'
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: When the result was l 13-7 ot, who was the opponent? ### Input: CREATE TABLE table_11906 (
    "Week" text,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Kickoff [a ]" text,
    "Game site" text,
    "Attendance" text,
    "Record" text
) ### Response: SELECT "Opponent" FROM table_11906 WHERE "Result" = 'l 13-7 ot'