What is the 1st leg when team number 1 is CSU SIBIU?
CREATE TABLE table_64691 (
    "Team #1" text,
    "Agg." text,
    "Team #2" text,
    "1st leg" text,
    "2nd leg" text
)
SELECT "1st leg" FROM table_64691 WHERE "Team #1" = 'csu sibiu'
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: What is the 1st leg when team number 1 is CSU SIBIU? ### Input: CREATE TABLE table_64691 (
    "Team #1" text,
    "Agg." text,
    "Team #2" text,
    "1st leg" text,
    "2nd leg" text
) ### Response: SELECT "1st leg" FROM table_64691 WHERE "Team #1" = 'csu sibiu'