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_name_86 (stations INTEGER, line VARCHAR)
### Question:
What is the total number of stations with a line that is u 6?
### Answer:
SELECT SUM(stations) FROM table_name_86 WHERE line = "u 6"