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_21 (grid INTEGER, laps VARCHAR, driver VARCHAR)
### Question:
what is the lowest grid when the laps is more than 7 and the driver is rubens barrichello?
### Answer:
SELECT MIN(grid) FROM table_name_21 WHERE laps > 7 AND driver = "rubens barrichello"