Table schema:
CREATE TABLE table_name_30 (time_retired VARCHAR, driver VARCHAR, constructor VARCHAR, grid VARCHAR, laps VARCHAR)

Question: What is the time/retired of Driver Masten Gregory Carroll Shelby when the constructor was Maserati, the Grid was larger than 10 and there were more than 2 laps?
SQL: SELECT time_retired FROM table_name_30 WHERE grid > 10 AND laps > 2 AND constructor = "maserati" AND driver = "masten gregory carroll shelby"