<prompt> Translate the following text to EnglishKwa mfano, mikopo ya moja kwa moja au dhamana za mkopo baada ya mwaka 1991 zitabaki na kundi lao la awali kwa muda wote wa mkopo, hata kama mkopo unabadilishwa.  <response>: Post-1991 direct loans or loan guarantees will remain with their original cohort throughout the life of the loan, even if the loan is modified. 