Which round was the defensive tackle picked after 187?
CREATE TABLE table_name_8 (
    round INTEGER,
    position VARCHAR,
    pick__number VARCHAR
)
SELECT AVG(round) FROM table_name_8 WHERE position = "defensive tackle" AND pick__number > 187
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: Which round was the defensive tackle picked after 187? ### Input: CREATE TABLE table_name_8 (
    round INTEGER,
    position VARCHAR,
    pick__number VARCHAR
) ### Response: SELECT AVG(round) FROM table_name_8 WHERE position = "defensive tackle" AND pick__number > 187