What was the score in the 1st leg when 2nd leg was 1 4?
CREATE TABLE table_50645 (
    "Team 1" text,
    "Agg." text,
    "Team 2" text,
    "1st leg" text,
    "2nd leg" text
)
SELECT "1st leg" FROM table_50645 WHERE "2nd leg" = '1–4'
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 was the score in the 1st leg when 2nd leg was 1 4? ### Input: CREATE TABLE table_50645 (
    "Team 1" text,
    "Agg." text,
    "Team 2" text,
    "1st leg" text,
    "2nd leg" text
) ### Response: SELECT "1st leg" FROM table_50645 WHERE "2nd leg" = '1–4'