Original sentence: - The North Faces of Lavaredo in Winter (1953).- The Southwest Pillar of the Dru (1955).At age eighteen, Bonatti had made the fourth ascent of the formidable North Face of the Grand Jorasses with very poor equipment over a period of two days.Two decades later, Messner and Peter Habeler astonished the mountaineering world by climbing Mount Everest without bottled oxygen
Edited sentence: - The North Faces of Tre Cime di Lavaredo in Winter (1953).- The Southwest Pillar of the Aiguille du Dru (1955).At age eighteen, Bonatti had made the fourth ascent of the formidable North Face of the Grandes Jorasses with very poor equipment over a period of two days.Two decades later, Reinhold Messner and Peter Habeler astonished the mountaineering world by climbing Mount Everest without bottled oxygen