Complex sentence: Huascarán or Nevado Huascarán is a mountain of the Cordillera Blanca, part of the Western Andes, and at 6768 metres its southern peak (Huascarán Sur) is the highest in Peru and the fourth highest in South America.
Split into simpler sentences: Huascarán or Nevado Huascarán is a mountain of the Cordillera Blanca, part of the Western Andes. At 6768 m its southern peak (Huascarán Sur) is the highest in Peru and the fourth highest in South America.