Complex sentence: She participated at the 2008 Summer Olympics, 2012 Summer Olympics and 2016 Summer Olympics, she is the ukrainian rhythmic gymnast with most appareances at the olympic stage as well one of the few rhythmic gymnasts of the world that has attended and reached olympic finals.
Split into simpler sentences: She participated at the 2008 Summer Olympics, 2012 Summer Olympics and 2016 Summer Olympics. She is the Ukranian rhythmic gymnast with most appareances at the olympic stage as well one of the few rhythmic gymnasts of the world that has attended and reached olympic finals.