Original sentence: That means, that the letter's appearances change when they are at the end of words from כ, פ, צ, מ, נ to ך, ף, ץ, ם, ן respectively
Edited sentence: That means, that the letters' appearances change when they are at the end of words from כ, פ, צ, מ, נ to ך, ף, ץ, ם, ן respectively