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_2 (fastest_lap VARCHAR, constructor VARCHAR, race VARCHAR)
### Question:
What was the fastest lap time at the British Grand Prix with Mercedes as the constructor?
### Answer:
SELECT fastest_lap FROM table_name_2 WHERE constructor = "mercedes" AND race = "british grand prix"