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_50 (time INTEGER, lane VARCHAR, name VARCHAR)
### Question:
What's the time of Britta Steffen in a lane less than 4?
### Answer:
SELECT SUM(time) FROM table_name_50 WHERE lane < 4 AND name = "britta steffen"