What is the sum grid number when the driver was Luciano Burti?
CREATE TABLE table_name_55 (grid VARCHAR, driver VARCHAR)
SELECT COUNT(grid) FROM table_name_55 WHERE driver = "luciano burti"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_55 (grid VARCHAR, driver VARCHAR) Question: What is the sum grid number when the driver was Luciano Burti? [/INST] SELECT COUNT(grid) FROM table_name_55 WHERE driver = "luciano burti" </s>