English "digraphic" and "digraphia" were contemporaneous with their corresponding terms in French linguistics. Yat-Shing Cheung differentiates three Chinese digraphic situations. In it he described the first known digraphic substitution cipher. Inuktitut is also officially digraphic, using both Latin and Inuktitut syllabics. These digraphic reformers call for a generalized use of Pinyin orthography along with Chinese characters.