Complex sentence: The Bormida di Spigno is a river of north-west Italy whose headwaters are in the Ligurian province of Savona at Pian dei Corsi (1,000 m AMSL) in a transitional zone between the Alpine and Apennine mountain ranges.
Split into simpler sentences: The Bormida di Spigno is a river of north-west Italy. Its headwaters are in the Ligurian province of Savona above Pian dei Corsi (1,000 m AMSL) in a transitional zone between the Alpine and Apennine mountain ranges.