What is the model number introduced May 1999?
CREATE TABLE table_10528691_4 (
    model INTEGER,
    introduction VARCHAR
)
SELECT MAX(model) FROM table_10528691_4 WHERE introduction = "May 1999"
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 model number introduced May 1999? ### Input: CREATE TABLE table_10528691_4 (
    model INTEGER,
    introduction VARCHAR
) ### Response: SELECT MAX(model) FROM table_10528691_4 WHERE introduction = "May 1999"