Who was the songwriter for Track 4, produced by nigel wright and john smits?
CREATE TABLE table_12798 (
    "Track" real,
    "Title" text,
    "Songwriter(s)" text,
    "Production credits" text,
    "Time" text
)
SELECT "Songwriter(s)" FROM table_12798 WHERE "Production credits" = 'nigel wright and john smits' AND "Track" = '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: Who was the songwriter for Track 4, produced by nigel wright and john smits? ### Input: CREATE TABLE table_12798 (
    "Track" real,
    "Title" text,
    "Songwriter(s)" text,
    "Production credits" text,
    "Time" text
) ### Response: SELECT "Songwriter(s)" FROM table_12798 WHERE "Production credits" = 'nigel wright and john smits' AND "Track" = '4'