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_20669355_2 (height__ft_ VARCHAR, hometown VARCHAR)
### Question:
How many different heights are there for the contestants from Warsaw?
### Answer:
SELECT COUNT(height__ft_) FROM table_20669355_2 WHERE hometown = "Warsaw"