North Ridge of K2
E271104
The North Ridge of K2 is a major, technically demanding climbing route on the world’s second-highest mountain, rising from the Chinese side and known for its extreme altitude, exposure, and objective hazards.
All labels observed (3)
| Label | Occurrences |
|---|---|
| North Ridge of K2 canonical | 1 |
| North Ridge route on K2 | 1 |
| South-Southeast Spur of K2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2485092 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Ridge of K2 Context triple: [Abruzzi Spur, isComparedWith, North Ridge of K2]
-
A.
Broad Peak
Broad Peak is one of the world’s highest mountains, an 8,000-meter-class peak in the Karakoram range on the border of Pakistan and China, renowned for its broad, extended summit ridge.
-
B.
Gasherbrum II
Gasherbrum II is one of the world’s fourteen eight-thousanders, a major Himalayan peak standing 8,035 meters tall on the China–Pakistan border.
-
C.
Gasherbrum IV
Gasherbrum IV is a prominent and technically challenging high peak in the Karakoram range of the Himalayas, renowned among mountaineers for its steep faces and difficult climbing routes.
-
D.
Gasherbrum III
Gasherbrum III is a high, remote peak in the Gasherbrum massif of the Karakoram range, notable as one of the world’s major 7,000-meter mountains.
-
E.
Baltoro Glacier
Baltoro Glacier is one of the world’s largest and most famous mountain glaciers, located in Pakistan’s Karakoram range and serving as a key route to K2 and other high peaks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: North Ridge of K2 Target entity description: The North Ridge of K2 is a major, technically demanding climbing route on the world’s second-highest mountain, rising from the Chinese side and known for its extreme altitude, exposure, and objective hazards.
-
A.
Broad Peak
Broad Peak is one of the world’s highest mountains, an 8,000-meter-class peak in the Karakoram range on the border of Pakistan and China, renowned for its broad, extended summit ridge.
-
B.
Gasherbrum II
Gasherbrum II is one of the world’s fourteen eight-thousanders, a major Himalayan peak standing 8,035 meters tall on the China–Pakistan border.
-
C.
Gasherbrum IV
Gasherbrum IV is a prominent and technically challenging high peak in the Karakoram range of the Himalayas, renowned among mountaineers for its steep faces and difficult climbing routes.
-
D.
Gasherbrum III
Gasherbrum III is a high, remote peak in the Gasherbrum massif of the Karakoram range, notable as one of the world’s major 7,000-meter mountains.
-
E.
Baltoro Glacier
Baltoro Glacier is one of the world’s largest and most famous mountain glaciers, located in Pakistan’s Karakoram range and serving as a key route to K2 and other high peaks.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
climbing route
ⓘ
mountaineering route ⓘ |
| accessedVia | Chinese base camp on K2 ⓘ |
| approachFrom | Chinese side of K2 ⓘ |
| associatedWith | K2 ⓘ |
| climbedBy | expedition teams ⓘ |
| climbingGrade | technical high-altitude mountaineering ⓘ |
| comparedToOtherRoutesOnK2 | less frequently climbed than the Abruzzi Spur ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| difficulty | very high ⓘ |
| elevationGain | approximately 3600 metres ⓘ |
| exposureLevel | very high ⓘ |
| hazards |
altitude sickness
ⓘ
avalanches ⓘ extreme cold ⓘ high winds ⓘ icefall ⓘ rockfall ⓘ severe storms ⓘ |
| highestPoint |
K2
ⓘ
surface form:
K2 summit
|
| knownAs |
North Ridge of K2
ⓘ
surface form:
North Ridge route on K2
|
| locatedIn |
China
ⓘ
Xinjiang ⓘ |
| locatedOn | K2 ⓘ |
| locatedOnSideOfMountain | north side of K2 ⓘ |
| mountainRange | Karakoram ⓘ |
| notableCharacteristic |
long summit push distance from high camp
ⓘ
remote and committing nature ⓘ |
| notableFor |
exposure
ⓘ
extreme altitude ⓘ objective hazards ⓘ |
| objectiveDangerLevel | very high ⓘ |
| partOf |
north side routes of K2
ⓘ
standard route network on K2 ⓘ |
| requires |
advanced technical climbing skills
ⓘ
fixed ropes ⓘ high-altitude experience ⓘ supplemental oxygen (optional but sometimes used) ⓘ |
| requiresPermitFrom | Chinese authorities ⓘ |
| routeType | ridge route ⓘ |
| season | typically climbed in summer ⓘ |
| summitElevation | 8611 metres ⓘ |
| terrain |
mixed rock and ice
ⓘ
steep snow slopes ⓘ |
| usedFor |
expedition climbing
ⓘ
high-altitude mountaineering ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: North Ridge of K2 Description of subject: The North Ridge of K2 is a major, technically demanding climbing route on the world’s second-highest mountain, rising from the Chinese side and known for its extreme altitude, exposure, and objective hazards.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
South-Southeast Spur of K2
this entity surface form:
North Ridge route on K2