Complex sentence: The 1976 Summer Olympics were highlighted by the legendary performance of 14-year-old Romanian female gymnast Nadia Comăneci, who scored seven perfect 10s and won 3 gold medals, including the prestigious All Around in women's gymnastics.
Split into simpler sentences: The 1976 Summer Olympics were highlighted by the legendary performance of Romanian female gymnast Nadia Comăneci. The 14-year-old Nadia Comăneci of Romania scored seven perfect 10s and won 3 gold medals, including the prestigious All Around in women's gymnastics.