program context_variable (input,output);
    DATABASE PERS = FILENAME 'PERSONNEL';

    begin
    READY PERS;
    START_TRANSACTION READ_ONLY;

    FOR E IN EMPLOYEES
       writeln (E.LAST_NAME, ' ', E.EMPLOYEE_ID, ' ', E.SEX);
    END_FOR;

    COMMIT;
    FINISH;
    end.