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_24574438_1 (gn_divisions VARCHAR, ds_division VARCHAR)
### Question:
Name the number of gn divisions for mannar
### Answer:
SELECT COUNT(gn_divisions) FROM table_24574438_1 WHERE ds_division = "Mannar"