Question: Which mountain, Nuptse or Gasherbrum III, is tallest?
Context: Gasherbrum III (Urdu: گاشر برم -3‎ ; ), surveyed as K3a, is a summit in the Gasherbrum massif of the Baltoro Muztagh, a subrange of the Karakoram on the border between Xinjiang, China and Gilgit-Baltistan, Pakistan.  It is situated between Gasherbrum II and IV. Gasherbrum I (Urdu: ‎ ; ), surveyed as K5 and also known as Hidden Peak, is the 11th highest mountain in the world at 8080 m above sea level.  It is located on the Pakistani–Chinese border in Gilgit–Baltistan region of Pakistan and Xinjiang region of China.  Gasherbrum I is part of the Gasherbrum massif, located in the Karakoram region of the Himalaya.  Gasherbrum is often claimed to mean "Shining Wall", presumably a reference to the highly visible face of the neighboring peak Gasherbrum IV; but in fact it comes from "rgasha" (beautiful) + "brum" (mountain) in Balti, hence it actually means "beautiful mountain." Burji La (or Burji Pass) is a natural pass in mountains between Skardu and Deosai National Park in Gilgit Baltistan, Pakistan.  Its elevation is 4816 meters.  It is famous especially for its beautiful panoramic view of so many mountain peaks, including that of K2, Nanga Parbat, Masherbrum, Chogolisa, Laila Peak, Golden Peak, Gasherbrum I, Gasherbrum II, Gasherbrum IV and a part of Broad Peak mountain. Machulo La is a mountain view point which is considered the most easiest way to view some of the most highest peaks of Himalayas and Karakoram mountains in a single glance such as K2, Broad Peak, Gasherbrum-I, Gasherbrum-II, Gasherbrum III, Gasherbrum IV, K7, K6 and Nanga Parbat. Ji Hyeon-ok (Hangul: 지현옥 ) (1959-1999) was a South Korean mountaineer.  Born in Nonsan, she climbed several of the tallest mountains in the world, including Denali (Mount McKinley) in 1988, Mount Everest, in 1993, becoming the first Korean woman to do so, Gasherbrum I, in 1997 and Gasherbrum II, in 1998. Gasherbrum (Urdu: گاشر برم‎ ) is a remote group of peaks located at the northeastern end of the Baltoro Glacier in the Karakoram range of the Himalaya on the border of the Chinese-administered Shaksgam Valley and the Gilgit-Baltistan territory of Pakistan.  The massif contains three of the world's 8,000 metre peaks (if Broad Peak is included).  Although the word "Gasherbrum" is often claimed to mean "Shining Wall", presumably a reference to the highly visible face of Gasherbrum IV, it comes from "rgasha" (beautiful) + "brum" (mountain) in Balti, hence it actually means "beautiful mountain". The Dark Glow of the Mountains (Gasherbrum - Der Leuchtende Berg) is a TV documentary made in 1984 by German filmmaker Werner Herzog.  It is about an expedition made by freestyle mountain climber Reinhold Messner and his partner Hans Kammerlander to climb Gasherbrum II and Gasherbrum I all in one trip without returning to base camp.  The film is not so much concerned with showing the climb itself or giving guidelines on mountaineering, but seeks to reveal the inner motivation of the climbers. Nazir Sabir Urdu: نذیر صابر is a Pakistani mountaineer.  He was born in Hunza.  He has climbed Mount Everest and four of the five 8000 m peaks in Pakistan, including the world's second highest mountain K2 in 1981, Gasherbrum II 8035m, Broad Peak 8050m in 1982, and Gasherbrum I (Hidden Peak) 8068m in 1992.  He became the first from Pakistan to have climbed Everest on 17 May 2000 as a team member on the Mountain Madness Everest Expedition led by Christine Boskoff from USA that also included famed Everest climber Peter Habeler of Austria and eight Canadians. Kala Patthar, meaning 'black rock' in Nepali and Hindi, is a notable landmark located on the south ridge of Pumori in the Nepalese Himalayas above Gorakshep.  Although not a proper mountain, with a prominence of only , the ascent of Kala Patthar is very popular with trekkers in the region of Mount Everest since it provides the most accessible closeup view of Everest.  Due to the structure of the Everest Massif, its high summit is blocked by Nuptse from much of the surrounding region.  The views of Everest, Nuptse and Changtse are spectacular from Kala Patthar and there are glimpses of the northern flank and summit of Lhotse.  The world's highest webcam, Mount Everest webcam, is located here. Nuptse or Nubtse (Sherpa: ནུབ་རྩེ། नुबचे, Wylie: Nub rtse) is a mountain in the Khumbu region of the Mahalangur Himal, in the Nepalese Himalayas.  It lies two kilometres WSW of Mount Everest.  Nubtse is Tibetan for "west peak", as it is the western segment of the Lhotse-Nubtse massif.
Answer: Gasherbrum III