CREATE TABLE table_203_671 (id NUMBER, "name" CLOB, "rank" CLOB, "age" NUMBER, "years until mandatory retirement" CLOB, "appointed by" CLOB, "year appointed" NUMBER)

how long did roberto feliberti cintron serve before retirement ?
SELECT "years until mandatory retirement" FROM table_203_671 WHERE "name" = 'roberto feliberti cintron'
SELECT "years until mandatory retirement" FROM "table_203_671" WHERE "name" = 'roberto feliberti cintron'