Complex sentence: One of the unique characteristics of was "hatta varnka", a secret code language developed for cash books and legers, used only business and overseas communications, the purpose of which was to make the company's accounting unintelligible to revenue collectors thereby enabling tax evasion.
Split into simpler sentences: One of the unique characteristics of was "hatta varnka", a secret code language developed for cash books and legers. Used only business and overseas communications, the purpose of it was to make the company's accounting unintelligible to revenue collectors thereby enabling tax evasion.