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_18 (round INTEGER, college VARCHAR, overall VARCHAR)
### Question:
What is the highest round for College of Nebraska if the Overall is under 190?
### Answer:
SELECT MAX(round) FROM table_name_18 WHERE college = "nebraska" AND overall < 190