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_33 (nationality VARCHAR, round VARCHAR, college VARCHAR)
### Question:
What is the nationality of the round 4 draft selection who played college ball at oklahoma?
### Answer:
SELECT nationality FROM table_name_33 WHERE round = 4 AND college = "oklahoma"