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_76 (opponent VARCHAR, game_site VARCHAR, week VARCHAR)
### Question:
Which opponent was played at Forbes Field after week 4?
### Answer:
SELECT opponent FROM table_name_76 WHERE game_site = "forbes field" AND week > 4