1975 Everest South-West Face expedition

Target entity: 1975 Everest South-West Face expedition
Context triple: [Chris Bonington, notableExpedition, 1975 Everest South-West Face expedition]

• A. 1970 British Annapurna South Face Expedition
  The 1970 British Annapurna South Face Expedition was a landmark Himalayan climbing venture led by Chris Bonington that achieved the first ascent of Annapurna’s formidable south face, pioneering modern big-wall alpine-style expeditions.
• B. 1970 Nanga Parbat expedition
  The 1970 Nanga Parbat expedition was a landmark Himalayan climbing attempt on the Rupal Face of Nanga Parbat that became infamous for its extreme difficulty, tragedy, and its pivotal role in launching Reinhold Messner’s legendary mountaineering career.
• C. 1960 Dhaulagiri expedition
  The 1960 Dhaulagiri expedition was the successful mountaineering campaign that achieved the first ascent of Dhaulagiri, one of the world’s fourteen 8,000-meter peaks, in the Nepal Himalayas.
• D. 1955 British Kangchenjunga expedition
  The 1955 British Kangchenjunga expedition was the mountaineering team that achieved the first successful ascent of Kangchenjunga, the world’s third-highest mountain.
• E. 1953 Nanga Parbat expedition
  The 1953 Nanga Parbat expedition was the successful Austrian-German mountaineering campaign during which Hermann Buhl made the first ascent of Nanga Parbat in the Himalayas.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: 1975 Everest South-West Face expedition
Target entity description: The 1975 Everest South-West Face expedition was a landmark British mountaineering campaign that achieved the first successful ascent of Everest’s formidable southwest face under the leadership of Chris Bonington.

• A. 1970 British Annapurna South Face Expedition
  The 1970 British Annapurna South Face Expedition was a landmark Himalayan climbing venture led by Chris Bonington that achieved the first ascent of Annapurna’s formidable south face, pioneering modern big-wall alpine-style expeditions.
• B. 1970 Nanga Parbat expedition
  The 1970 Nanga Parbat expedition was a landmark Himalayan climbing attempt on the Rupal Face of Nanga Parbat that became infamous for its extreme difficulty, tragedy, and its pivotal role in launching Reinhold Messner’s legendary mountaineering career.
• C. 1960 Dhaulagiri expedition
  The 1960 Dhaulagiri expedition was the successful mountaineering campaign that achieved the first ascent of Dhaulagiri, one of the world’s fourteen 8,000-meter peaks, in the Nepal Himalayas.
• D. 1955 British Kangchenjunga expedition
  The 1955 British Kangchenjunga expedition was the mountaineering team that achieved the first successful ascent of Kangchenjunga, the world’s third-highest mountain.
• E. 1953 Nanga Parbat expedition
  The 1953 Nanga Parbat expedition was the successful Austrian-German mountaineering campaign during which Hermann Buhl made the first ascent of Nanga Parbat in the Himalayas.
• F. None of above. chosen