Complex sentence: Aina Muceniece was born in Katlakalns, Latvia, graduated Vilis Olavs school in Riga and worked as a nurse during the Second World War in Yaroslav, USSR.
Split into simpler sentences: Aina Muceniece was born in Katlakalns, Latvia. She graduated the Vilis Olavs School in Riga and worked as a nurse during the Second World War in Yaroslavl, USSR.