Complex sentence: Guam was debuted at Miss World in 1971 and represented by Deborah Bordallo Nelson who placed as the 4th Runner-up and won the crown after the official winner of Miss World 1980, Gabriella Brum resigned the title.
Split into simpler sentences: Guam was debuted at Miss World in 1971 and represented by Deborah Bordallo Nelson, who placed as the 4th Runner-up. Guam won the crown after the official winner of Miss World 1980, Gabriella Brum, resigned the title.