Complex sentence: The 2014 Crimean crisis is unfolding in the autonomous region of Crimea, Ukraine, in the aftermath of the 2014 Ukrainian revolution, in which the government of President Viktor Yanukovych was ousted.
Split into simpler sentences: The 2014 Crimean crisis is unfolding in the region of Crimea, Ukraine. It began in the aftermath of the 2014 Ukrainian revolution, in which the government of President Viktor Yanukovych was ousted.