Complex sentence: At the end of 1971, Yared went to Brazil to visit his uncle and was asked by the president of the World Federation of Light Music Festivals to write a song to represent the Lebanese in the Rio de Janeiro Song Festival.
Split into simpler sentences: At the end of 1971, he went to Brazil to visit his uncle. There, the president of the World Federation of Light Music Festivals asked him to write a song to represent the Lebanese in the Rio de Janeiro Song Festival.