What is the agg for a team second leg of 1-3?
CREATE TABLE table_15430 (
    "Team 1" text,
    "Agg." text,
    "Team 2" text,
    "1st leg" text,
    "2nd leg" text
)
SELECT "Agg." FROM table_15430 WHERE "2nd leg" = '1-3'
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 agg for a team second leg of 1-3? ### Input: CREATE TABLE table_15430 (
    "Team 1" text,
    "Agg." text,
    "Team 2" text,
    "1st leg" text,
    "2nd leg" text
) ### Response: SELECT "Agg." FROM table_15430 WHERE "2nd leg" = '1-3'