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_19948664_2 (ranking_la__2_ VARCHAR, world_ranking__1_ VARCHAR)
### Question:
How many items were under ranking l.a.(2) when the world ranking was 21st?
### Answer:
SELECT COUNT(ranking_la__2_) FROM table_19948664_2 WHERE world_ranking__1_ = "21st"