 That is, is written with a ы rather than a и to show that the г is pronounced rather than , then the ь is added to show that the ы is pronounced as if it were a и, so the discontinuous digraph ы...ь is used here to write the vowel .This strategy is also followed with the ambiguous letters е, ю, and я in final syllables, for instance in "cheap".That is, the discontinuous digraphs е...ь, ю...ь, я...ь are used for plus the front vowels .