Question: Which mountain is higher Gangkhar Puensum or Jongsong Peak?

Context paragraphs:
Avalanche Lake (New York): Avalanche Lake is a 9 acre mountain lake located in the Adirondack High Peaks in New York.  Avalanche Lake sits at 2885 feet (879 m) between 4,714-foot (1,437 m) Mount Colden and-3816 foot (1163 m) Avalanche Mountain.  The two mountains rise in vertical cliffs from the surface of the lake.  Immediately west of Avalanche Mountain (formerly known as Caribou Mountain) lies the MacIntyre Range— 5,115-foot (1,559 m) Algonquin Peak (the second highest mountain in the state), 4829-foot (1472 m) Boundary Peak, 4,843-foot (1,476 m) Iroquois Peak and 4,380-foot (1,335 m) Mount Marshall.  Mount Marcy is 2.5 (4 km) miles to the east.  Avalanche Lake feeds Lake Colden to the south, in the Hudson River watershed.  To the north, the trail to the lake from the Adirondak Loj surmounts Avalanche Pass, which is only slightly above lake level but separates it from the Lake Champlain (St. Lawrence River) watershed.  Following the lake toward Lake Colden, the trail is choked with large boulders, and a number of wooden ladders have been built to make passage possible.  There are also three places where the trail takes to wooden catwalks, first built in the 1920s, that are bolted directly into the cliff face.  This section is known as the "Hitch-Up Matilda;" in 1868 when a mountain guide waded to carry one of his clients past a point with no footing on shore, her husband urged her to sit higher on his shoulders.

Line parent: A peak's line parent is the closest higher peak on the highest ridge leading away from the peak's "key col".  A col is the lowest point on the ridge between two summits and is synonymous with pass, gap, saddle and notch.  A peak's "key col" is the lowest point on the ridge which connects the peak and a higher peak.  If there is more than one ridge which can be followed to a higher peak then the line parent is the peak closest to the key col. Usually, a line parent must meet some prominence criteria, which might vary depending on the author and the location of the peak.

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.

Mangde Chhu: Mangde Chhu or Tongsa river flows in central Bhutan traversing roughly north-south.  The river rises in Wangdue Phodrang district (or dzongkhag in Dzongkha), near Gangkhar Puensum, Bhutan's highest peak at 7546 m .  Bhutan's main east-west highway crosses the Mangde Chhu about 8 km west of Trongsa.  South of Trongsa, the river drains the eastern slopes of the Black Mountains (Bhutan), and forms the eastern boundaries of Black Mountain National Park and Royal Manas National Park.  Another highway follows the river south from Trongsa to Shemgang.  The highway leaves the river at Tingtinbi, and eventually reaches the Indian border at Gelegphug.  South of Tingtinbi, the Mangde is joined by the Bumthang River from the east, and is known as the Tongasa.  Shortly before entering India in Assam, the Manas River flows into the river from the east, and the river exits Bhutan near Manas.

Gangkhar Puensum: Gangkhar Puensum (Dzongkha: གངས་དཀར་སྤུན་གསུམ་ "Kangkar Punsum ", alternatively, Gangkar Punsum or Gankar Punzum) is the highest mountain in Bhutan and a strong candidate for the highest unclimbed mountain in the world with an elevation of 7570 m and a prominence of 2995 m .  Its name means "White Peak of the Three Spiritual Brothers".

Lenin Peak: Lenin Peak (Kyrgyz: Ленин Чокусу , "Lenin Çoqusu", لەنىن چوقۇسۇ; Russian: Пик Ленина , "Pik Lenina"; Tajik: қуллаи Ленин, "qulla‘i Lenin/qullaji Lenin" , renamed қуллаи Абӯалӣ ибни Сино (qulla‘i Abûalî ibni Sino) in July 2006), or Ibn Sina (Avicenna) Peak, rises to 7,134 metres (23,406 ft) in Gorno-Badakhshan (GBAO) on the border of Tajikistan and Kyrgyzstan, and is the second-highest point of both countries.  It is considered one of the easiest 7000 m peaks in the world to climb and it has by far the most ascents of any 7000 m or higher peak on Earth, with every year seeing hundreds of climbers make their way to the summit.  Lenin Peak is the highest mountain in the Trans-Alay Range of Central Asia, and in the Pamir Mountains in Tajikistan it is exceeded only by Ismoil Somoni Peak (7,495 m).  It was thought to be the highest point in the Pamirs in Tajikistan until 1933, when Ismoil Somoni Peak (known as "Stalin Peak" at the time) was climbed and found to be more than 300 metres higher.  Two mountains in the Pamirs in China, Kongur Tagh (7,649 m) and Muztagh Ata (7,546 m), are higher than the Tajik summits.

Killer Mountain: Killer Mountain is a 2011 made for TV Syfy original film.  This sci-fi film tells the story of mountain climbers sent to rescue a missing expedition from a forbidden mountain (Gangkhar Puensum) only to discover the legendary Shangri-La and the hungry creature protecting it, the Druk.

Snowmass Peak: Snowmass Peak in the U.S. state of Colorado dominates the view from Snowmass Lake.  It is often mistaken for Snowmass Mountain, the thirty-fourth highest mountain peak in the state, as well as for Hagerman Peak.  Snowmass Peak is not really a peak but the lower end of Hagerman Peak's east ridge.  Natural forced perspective causes the optical illusion that Snowmass Peak is higher than Hagerman Peak though it is actually 221 ft shorter than Hagerman's summit.  This illusion combined with its striking rise behind Snowmass Lake justifies it being a named point on USGS topographical maps.  It is located in the Elk Mountains, within the Maroon Bells-Snowmass Wilderness of the White River National Forest.  It lies along the border between Pitkin and Gunnison counties, west of Aspen and southwest of the town of Snowmass Village.

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.

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.

Supporting paragraphs: Gangkhar Puensum Jongsong Peak
Answer: Gangkhar Puensum