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_203_671 ( id number, "name" text, "rank" text, "age" number, "years until mandatory retirement" text, "appointed by" text, "year appointed" number )

### Question ###
how long did roberto feliberti cintron serve before retirement ?

### Accurate SQL ###

SELECT "years until mandatory retirement" FROM table_203_671 WHERE "name" = 'roberto feliberti cintron'