Question: What do Broad Peak and K12 have in common?

Context paragraphs:
Marcus Schmuck: Marcus Schmuck (April 18, 1925 – August 21, 2005) was an Austrian mountaineer.  In 1957, together with Hermann Buhl he organized the expedition, firstly envisaged and initiated by Buhl, to climb the world's 12th highest peak, the Broad Peak (8,047 metres) in the Karakoram in Pakistan.  The other members of the expedition were: Fritz Wintersteller and Kurt Diemberger.  In his later years, he successfully organized and led 74 expeditions to the high mountains around the world.

Karakoram: The Karakoram, or Karakorum is a large mountain range spanning the borders of Pakistan, India, and China, with the northwest extremity of the range extending to Afghanistan and Tajikistan.  It is located in the regions of Gilgit–Baltistan (Pakistan), Ladakh (India), and southern Xinjiang (China), and reaches the Wakhan Corridor (Afghanistan).  A part of the complex of ranges from the Hindu Kush to the Himalayan Range, it is one of the Greater Ranges of Asia.  The Karakoram is home to the four most closely located peaks over 8000m in height on earth: K2, the second highest peak in the world at 8611 m , Gasherbrum I, Broad Peak and Gasherbrum II.

Burji La: 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.

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).

Hassan Sadpara: Hassan Sadpara PP (born Hassan Asad; April 1963 – 21 November 2016) was a Pakistani mountaineer and adventurer from Skardu in GB, Pakistan.  He is the first Pakistani to have climbed six eight-thousanders including the world's highest peak Everest (8848m) besides K2 (8611m), Gasherbrum I (8080m), Gasherbrum II (8034m), Nanga Parbat (8126 m), Broad Peak (8051m).  He is also credited for summiting five of the eight-thousanders without using supplemental oxygen.  Contrary to initial reports, Hassan Sadpara clarified that he used supplemental oxygen during his Everest ascent due to bad weather.  He died due to cancer on 21 November 2016 in Rawalpindi.

Maciej Berbeka: Maciej Berbeka (17 October 1954, Zakopane, Poland – 6 March 2013, Broad Peak, Baltistan) was a Polish mountaineer, mountain guide UIAGM and member of TOPR.  He and his teammate Tomasz Kowalski went missing on 6 March 2013 as they were descending from Broad Peak.  They were declared dead two days later.

Adam Bielecki (climber): Adam Bielecki (born 12 May 1983) is a Polish alpine and high-altitude climber.  He is known for the first winter ascents of the eight-thousanders: Gasherbrum I and Broad Peak.

K12 (mountain): Surveyed as K12, this mountain is in the Saltoro Muztagh which is a subrange of the Karakoram range in the Siachen region, near Jammu and Kashmir.  It lies near the Line of Control.  Its name comes from its designation given during the original survey of the Karakoram range.

Nazir Sabir: 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.

Broad Peak: Broad Peak (Urdu: ‎ ) is the 12th highest mountain in the world at 8051 m above sea level.  The literal translation of "Broad Peak" to Falchan Kangri (ཨིྰན་ཨངརི་) is not accepted among the Balti people.  The English name was introduced in 1892 by the British explorer Martin Conway, in reference to the similarly named Breithorn in the Alps.

Supporting paragraphs: Broad Peak K12 (mountain)
Answer: mountain