What platform was used for the game directed by Bryan Walker after 2006?
CREATE TABLE table_name_45 (
    platform_s_ VARCHAR,
    year VARCHAR,
    director VARCHAR
)
SELECT platform_s_ FROM table_name_45 WHERE year > 2006 AND director = "bryan walker"
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 platform was used for the game directed by Bryan Walker after 2006? ### Input: CREATE TABLE table_name_45 (
    platform_s_ VARCHAR,
    year VARCHAR,
    director VARCHAR
) ### Response: SELECT platform_s_ FROM table_name_45 WHERE year > 2006 AND director = "bryan walker"