How many lengths of line 3 are given?
CREATE TABLE table_1603807_2 (length VARCHAR, line VARCHAR)
SELECT COUNT(length) FROM table_1603807_2 WHERE line = "line 3"
### 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"