how many times was the score 1-0 in the 1st leg ?
CREATE TABLE table_203_350 (
    id number,
    "team #1" text,
    "agg." text,
    "team #2" text,
    "1st leg" text,
    "2nd leg" text
)
SELECT COUNT(*) FROM table_203_350 WHERE "1st leg" = '1-0'
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: how many times was the score 1-0 in the 1st leg ? ### Input: CREATE TABLE table_203_350 (
    id number,
    "team #1" text,
    "agg." text,
    "team #2" text,
    "1st leg" text,
    "2nd leg" text
) ### Response: SELECT COUNT(*) FROM table_203_350 WHERE "1st leg" = '1-0'