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_21109892_1 (quantity_world_rank VARCHAR, value_world_rank VARCHAR)
### Question:
where value world rank is 12, what is the quantity world rank?
### Answer:
SELECT quantity_world_rank FROM table_21109892_1 WHERE value_world_rank = "12"