Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_45 (platform_s_ VARCHAR, year VARCHAR, director VARCHAR)
### Question:
What platform was used for the game directed by Bryan Walker after 2006?
### Answer:
SELECT platform_s_ FROM table_name_45 WHERE year > 2006 AND director = "bryan walker"