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_1603807_2 (length VARCHAR, line VARCHAR)
### Question:
How many lengths of line 3 are given?
### Answer:
SELECT COUNT(length) FROM table_1603807_2 WHERE line = "line 3"