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_12028543_3 (losingteam VARCHAR, cup_finaldate VARCHAR)
### Question:
How many losingteams were for the cup finaldate 20 August 1989?
### Answer:
SELECT COUNT(losingteam) FROM table_12028543_3 WHERE cup_finaldate = "20 August 1989"