CREATE TABLE gymnast (Gymnast_ID VARCHAR2, Total_Points VARCHAR2)
CREATE TABLE people (Age VARCHAR2, People_ID VARCHAR2)

Show the ages of gymnasts in descending order of total points.
SELECT T2.Age FROM gymnast AS T1 JOIN people AS T2 ON T1.Gymnast_ID = T2.People_ID ORDER BY T1.Total_Points DESC
SELECT "T2"."Age" FROM "gymnast" "T1" JOIN "people" "T2" ON "T1"."Gymnast_ID" = "T2"."People_ID" ORDER BY "T1"."Total_Points" DESC