Name the written by for john trefor
CREATE TABLE table_2430014_6 (
    written_by VARCHAR,
    directed_by VARCHAR
)
SELECT written_by FROM table_2430014_6 WHERE directed_by = "John Trefor"
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: Name the written by for john trefor ### Input: CREATE TABLE table_2430014_6 (
    written_by VARCHAR,
    directed_by VARCHAR
) ### Response: SELECT written_by FROM table_2430014_6 WHERE directed_by = "John Trefor"