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_81 (year VARCHAR, points VARCHAR, chassis VARCHAR)
### Question:
Which year had 0 points and an AGS JH23B chassis?
### Answer:
SELECT year FROM table_name_81 WHERE points = 0 AND chassis = "ags jh23b"