Complex sentence: In the song, Ksenia is talking about friendship and peace on Earth.She won the Eurojunior in 1st Place.She wnet home with her victory and said, I can't believe I have won !
Split into simpler sentences: In the song, Ksenia sings about friendship and peace on Earth.She won the Junior Eurovision Song Contest in 1st Place. She went home with her victory and said I can't believe I have won!