Complex sentence: From 1954 to the present, Abkhaz language is written in the Cyrillic-based script, extended to adjust to the extensive consonant system of the Abkhaz language.
Split into simpler sentences: From 1954 to the present, Abkhaz language is written in the Cyrillic-based script. The Abkhaz alphabet uses the Cyrillic, extended to adjust to the extensive consonant system of the Abkhaz language.