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