Complex sentence: She was abandoned by her birth parents at a Ukrainian orphanage where she lived until age 7 when she was adopted by Gay Masters, an unmarried American speech therapy professor with no children of her own.
Split into simpler sentences: She was abandoned by her birth parents at a Ukrainian orphanage where she lived until age 7. After she turned 7, Oksana was adopted by Gay Masters, an unmarried American speech therapy professor with no children of her own.