CREATE TABLE Ship (Ship_ID NUMBER, Name CLOB, Type CLOB, Built_Year FLOAT, Class CLOB, Flag CLOB)
CREATE TABLE captain (Captain_ID NUMBER, Name CLOB, Ship_ID NUMBER, age CLOB, Class CLOB, Rank CLOB)

Show me a scatter plot for the relationship between average and minimum age of captains in each class.
SELECT AVG(age), MIN(age) FROM captain GROUP BY Class
SELECT AVG("age"), MIN("age") FROM "captain" GROUP BY "Class"