What is the largest grid with a Driver of ralph firman, and a Lap smaller than 18?
CREATE TABLE table_name_15 (grid INTEGER, driver VARCHAR, laps VARCHAR)
SELECT MAX(grid) FROM table_name_15 WHERE driver = "ralph firman" AND laps < 18
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (grid INTEGER, driver VARCHAR, laps VARCHAR) Question: What is the largest grid with a Driver of ralph firman, and a Lap smaller than 18? [/INST] SELECT MAX(grid) FROM table_name_15 WHERE driver = "ralph firman" AND laps < 18 </s>