Complex sentence: The Republic of Crimea (Crimean Tatar: Къырым Джумхуриети, "Qırım Cumhuriyeti";) was a short-lived, partially recognized sovereign state that claimed the entirety of the Crimean peninsula in the Black Sea, south of Ukraine and west of southern Russia.
Split into simpler sentences: The Republic of Crimea (Crimean Tatar: Къырым Джумхуриети, "Qırım Cumhuriyeti";) was a short-lived, partially recognized sovereign state. It claimed the entirety of the Crimean peninsula in the Black Sea, south of Ukraine and west of southern Russia.