<prompt> Translate the following text to EnglishKila barua ni aina gani ya mabadiliko? ni typos ni kwa sababu sikuweza kusoma au watu tu kubadilisha kama neno moja kwa sababu wao kufikiri inaonekana bora au chochote.  <response>: and on each letter what types of changes are they typos are they because i couldnt read it or people just change a like one word because they think it sounds better or whatever 