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_9 (points_against VARCHAR, lost VARCHAR, points_for VARCHAR)
### Question:
Which Points against has a Lost of 13, and Points for of 671?
### Answer:
SELECT points_against FROM table_name_9 WHERE lost = "13" AND points_for = "671"