Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_68 ( laps INTEGER, rider VARCHAR, grid VARCHAR )

### Question ###
What is the lowest Laps, when Rider is Sylvain Guintoli, and when Grid is less than 16?

### Accurate SQL ###

SELECT MIN(laps) FROM table_name_68 WHERE rider = "sylvain guintoli" AND grid < 16