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_89 (manufacturer VARCHAR, rider VARCHAR, laps VARCHAR, grid VARCHAR)
### Question:
Which Manufacturer has a Laps of 21, a Grid larger than 16, and a Rider of akira ryō?
### Answer:
SELECT manufacturer FROM table_name_89 WHERE laps = 21 AND grid > 16 AND rider = "akira ryō"