The Problem I have text in Cyrillic and need to replace individual characters with their transliteration. I have a tiny json of the mappings: {"в": "v","а": "a","ф": "f","ё": "yo","д": "d","ж": "zh","ы": "y","э": "e","л": "l","щ": "shch","я": "ya","й": "j","у": "u","н": "n","г": "g","с": "s","п": "p","ч": "ch","б": "b","х": "kh","е": "ye","ъ": "\"","з": "z","ю": "yu","ь": "'","ш": "sh","о": "o","к": "k","и": "i","ц": "ts","м": "m","т": "t","р": "r"} And I have a number of files that contain lists with entries like