Question: Are Kangchenjunga and Trivor both mountains?

full_context: Document 1: Mount Everest: Mount Everest, known in Nepali as Sagarmāthā and in Tibetan as Chomolungma, is Earth's highest mountain, located in the Mahalangur Himal sub-range of the Himalayas. The international border between China (Tibet Autonomous Region) and Nepal runs across its summit point.
Document 2: Tirich Mir: Tirich Mir (Khowar/Urdu: ‎ ) (alternatively Terich Mir, Terichmir and Turch Mir) is the highest mountain of the Hindu Kush range, and the highest mountain in the world outside of the Himalayas-Karakoram range, located in Chitral District of Pakistan. The mountain was first climbed in 1950 by a Norwegian expedition consisting of Arne Næss, P. Kvernberg, H. Berg, and Tony Streather. Tirich Mir overlooks Chitral town, and can be easily seen from the main bazaar.
Document 3: Kangchenjunga: Kangchenjunga (Nepali: कञ्चनजङ्घा , "Kañcanajaṅghā"), also spelled Kanchenjunga, is the third highest mountain in the world, and lies partly in Nepal and partly in Sikkim, India. It rises with an elevation of 8586 m in a section of the Himalayas called "Kangchenjunga Himal" that is limited in the west by the Tamur River, in the north by the Lhonak Chu and Jongsang La, and in the east by the Teesta River.
Document 4: Momhil Sar: Momhil Sar, or Mumhail Sar as pronounced in Wakhi is at 7343 m above sea level, is the 64th highest mountain peak in the world. Mumhail Sar in Wakhi means the mountain that overlooks or is above Grandmother's cattle pen or paddock. It is situated in the Hispar Muztagh subrange of the Karakoram range, a few kilometres to the north-west of its parent peak Trivor.
Document 5: Distaghil Sar: Disteghil Sar or Distaghil Sar (Urdu: ‎ ) is the highest mountain in the Hispar Muztagh, a subrange of the Karakoram mountain range, in Gilgit-Baltistan. It is the 19th highest mountain on earth and the 7th highest peak in Pakistan. Destghil sar is a Wakhi language word, that means "above the inner ranch." The mountain has an about 3 km long top ridge above 7400m with three distinct summits: (north)west 7885m, central 7760 m, and (south)east 7696m or 7535m ().
Document 6: Liankang Kangri: Liangkang Kangri (also known as "Liankang Kangri") is a mountain peak in the Himalayas on the border between Bhutan and China, as well as at the southeastern end of territory claimed by both countries. Liangkang Kangri is 7535 m high. To the south, a ridge leads to the 7570 m Gangkhar Puensum 2 km to the south-southeast . Due to the low saddle height of 234 m , Liangkang Kangri is not regarded as an independent mountain. Westward a ridge leads to the 6680 m high Chumhari Kang. The Liangkanggletscher on the northwest flank and the Namsanggletscher on the eastern flank of Liangkang Kangri form the headwaters of the Lhobrak Chhu, a source river of Kuri Chhu. The glacier on the southwest flank belongs to the catchment area of Angde Chhu.
Document 7: Hispar Muztagh: Hispar Muztagh is a sub-range of the Karakoram mountain range. It is located in the Gojal region of Gilgit-Baltistan, Pakistan, north of Hispar Glacier, south of Shimshal Valley, and east of the Hunza Valley. It is the second highest sub-range of the Karakoram, the highest being the Baltoro Muztagh. The highest mountain in the range is Distaghil Sar (7,885m/25,869 ft).
Document 8: Istor-o-Nal: Istor-o-Nal or इस्तोर-ओ-नल is the third highest mountain in the Hindu Kush, in the Chitral District of the North-West Frontier Province of Pakistan. It is the 68th highest independent peak in the world. It crowns a massif with eleven peaks of elevation more than 7000 m . The peak is located a few kilometres northeast of Tirich Mir (the highest mountain in the Hindu Kush), across the Tirich Glacier. Because Istor-o-Nal is behind the higher peak of Tirich Mir from many viewpoints, it is not easily visible and therefore not well known.
Document 9: Jongsong Peak: Jongsong Peak is a mountain in the "Janak" section of the Himalayas. At 7462 m it is the 57th highest peak in the world, although it is dominated by 3rd highest, Kangchenjunga, 20 km to the south. Jongsong's summit is on tri-junction of India, Nepal and China.
Document 10: Gyachung Kang: Gyachung Kang (Nepali: ग्याचुङ्काङ , "Gyāchung Kāng"; ) is a mountain in the Mahalangur Himal section of the Himalaya, and is the highest peak between Cho Oyu (8,201 m) and Mount Everest (8,848 m). It lies on the border between Nepal and China. As the fifteenth-highest peak in the world, it is also the highest peak that is not eight thousand metres tall; hence it is far less well-known than the lowest of the eight-thousanders, which are only about 100 m (328 ft) higher. The peak's lack of significant prominence (700 m) also contributes to its relative obscurity.
Document 11: Nanda Devi: Nanda Devi is the second highest mountain in India, and the highest located entirely within the country. (Kangchenjunga, which is higher, is on the border of India and Nepal.) It is the 23rd-highest peak in the world. It was considered the highest mountain in the world before computations in 1808 proved Dhaulagiri to be higher. It was also the highest mountain in India before 1971 when Sikkim, the state in which Kangchenjunga is located, joined the Republic of India. It is part of the Garhwal Himalayas, and is located in the state of Uttarakhand, between the Rishiganga valley on the west and the Goriganga valley on the east. The peak, whose name means "Bliss-Giving Goddess", is regarded as the patron-goddess of the Uttarakhand Himalaya. In acknowledgment of its religious significance and for the protection of its fragile ecosystem, the peak as well as the circle of high mountains surrounding it—the Nanda Devi sanctuary—were closed to both locals and climbers in 1983. The surrounding Nanda Devi National Park was declared a UNESCO World Heritage Site in 1988.
Document 12: Rush Peak: Rush Peak is a mountain in the Karakoram mountain range of Central Asia. It is located in the Nagar District of Gilgit-Baltistan, Pakistan. While not a high peak by local standards, it is noteworthy as a remote trekking destination. It can be reached via Nagar Valley and Hoper Village. The peak can be accessed via Hoper Glacier (Bualtar Glacier) and Barpu Glacier. The peak is relatively easy to climb in the summer months and ascents have been made by amateur climbers without proper mountaineering gear. In winter, access to the mountain is made difficult by heavy snows. The top of the peak provides stunning views of Miar Peak (6,824 m), Miar Glacier and Phuparash Peak (6,574 m). On a clear day, one can look east and see some of the world's highest mountains, including K2 and Broad Peak. At the mountain's base lies one of the world's highest alpine lakes, Rush Lake (4,694m).
Document 13: Trivor: Trivor (Urdu: ترِووُر‎ ) is one of the high peaks of the Hispar Muztagh, a subrange of the Karakoram range in the Gilgit-Baltistan of Pakistan.
Document 14: Siniolchu: Siniolchu is one of the tallest mountains of the Indian state of Sikkim. The 6888 m mountain is considered to be particularly aesthetically attractive, having been described by Douglas Freshfield as "the most superb triumph of mountain architecture and the most beautiful snow mountain in the world". It is situated near the green lake adjacent to Kangchenjunga, the highest peak in the state and third highest in the world.
Document 15: Muztagh Tower: Muztagh Tower (also: Mustagh Tower; "Muztagh": ice tower), is a mountain in the Baltoro Muztagh, part of the Karakoram range in Baltistan on the border of the Gilgit–Baltistan region of Pakistan and the Xinjiang Uyghur Autonomous Region of China. It stands between the basins of the Baltoro and Sarpo Laggo glaciers.
ground_truth: yes