Hillary Step
E128161
The Hillary Step was a nearly vertical rock face near the summit of Mount Everest that formed one of the final and most technically challenging obstacles for climbers ascending the mountain.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Hillary Step canonical | 1 |
| HillaryStep | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1114094 — 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: Hillary Step Context triple: [Mount Everest, hasFeature, Hillary Step]
-
A.
Kathleen
Kathleen is a feminine given name of Irish origin, derived from the name Catherine and widely used in English-speaking countries.
-
B.
Emily Carmichael
Emily Carmichael is an American filmmaker and screenwriter known for her work on genre films such as Pacific Rim: Uprising and for her distinctive, imaginative storytelling style.
-
C.
Gillian
Gillian is a feminine given name of Latin origin, commonly used in English-speaking countries.
-
D.
Stella Pence
Stella Pence is a film festival organizer best known as one of the founders of the prestigious Telluride Film Festival.
-
E.
Rachel Constantine
Rachel Constantine is a key political figure in Carl Sagan’s science fiction novel and film "Contact," serving as a high-ranking U.S. government official involved in managing humanity’s response to extraterrestrial contact.
- 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: Hillary Step Target entity description: The Hillary Step was a nearly vertical rock face near the summit of Mount Everest that formed one of the final and most technically challenging obstacles for climbers ascending the mountain.
-
A.
Kathleen
Kathleen is a feminine given name of Irish origin, derived from the name Catherine and widely used in English-speaking countries.
-
B.
Emily Carmichael
Emily Carmichael is an American filmmaker and screenwriter known for her work on genre films such as Pacific Rim: Uprising and for her distinctive, imaginative storytelling style.
-
C.
Gillian
Gillian is a feminine given name of Latin origin, commonly used in English-speaking countries.
-
D.
Stella Pence
Stella Pence is a film festival organizer best known as one of the founders of the prestigious Telluride Film Festival.
-
E.
Rachel Constantine
Rachel Constantine is a key political figure in Carl Sagan’s science fiction novel and film "Contact," serving as a high-ranking U.S. government official involved in managing humanity’s response to extraterrestrial contact.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
mountain feature
ⓘ
rock face ⓘ |
| approximateHeight |
about 12 metres
ⓘ
about 40 feet ⓘ |
| associatedNationalityContext |
Nepal (through Tenzing Norgay)
ⓘ
New Zealand (through Edmund Hillary) ⓘ |
| causeOfChange | likely effects of the 2015 Nepal earthquake ⓘ |
| climbingAid | fixed ropes installed by guides and Sherpas ⓘ |
| climbingSeason | primarily climbed in pre-monsoon (spring) season ⓘ |
| climbingStyleRequired |
mixed climbing techniques
ⓘ
rock climbing techniques ⓘ |
| country | Nepal ⓘ |
| difficulty | one of the most technically challenging sections on the standard route of Mount Everest ⓘ |
| elevation |
approximately 28,839 feet above sea level
ⓘ
approximately 8,790 metres above sea level ⓘ |
| environment |
extreme altitude
ⓘ
high winds potential ⓘ very low temperatures ⓘ |
| exposure | high exposure with steep drop-offs on both sides ⓘ |
| firstAscentBy |
Edmund Hillary
ⓘ
Tenzing Norgay ⓘ |
| firstAscentDate | 29 May 1953 ⓘ |
| impactOfChangeOnDifficulty | generally considered technically easier after alteration ⓘ |
| locatedNear | summit of Mount Everest ⓘ |
| locatedOn | Mount Everest ⓘ |
| majorChangeReportedIn |
2016
ⓘ
2017 ⓘ |
| mountainMassif | Mahalangur Himal ⓘ |
| namedAfter | Edmund Hillary ⓘ |
| notableFor |
historical significance in first successful ascent of Mount Everest
ⓘ
iconic feature of the Southeast Ridge route ⓘ |
| oxygenUseCommon | yes ⓘ |
| partOf | standard South Col route on Mount Everest ⓘ |
| positionOnRoute | between the South Summit and the main summit of Mount Everest ⓘ |
| postChangeDescription | transformed into a more gradual rocky slope ⓘ |
| range | Himalayas ⓘ |
| relativeHeightBelowSummit | about 10 to 12 metres below the summit ⓘ |
| riskFactors |
crowding
ⓘ
fatigue at extreme altitude ⓘ limited space for passing ⓘ |
| routeAssociation | Southeast Ridge route of Mount Everest ⓘ |
| significanceForClimbers | final major technical obstacle before the summit on the Southeast Ridge ⓘ |
| slopeCharacter | nearly vertical ⓘ |
| statusAfter2015Earthquake | reported significantly altered or collapsed ⓘ |
| trafficEffect | common bottleneck point for climbers ⓘ |
| usedFixedRopes | yes ⓘ |
| visibility | well-known landmark in summit photographs before its alteration ⓘ |
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: Hillary Step Description of subject: The Hillary Step was a nearly vertical rock face near the summit of Mount Everest that formed one of the final and most technically challenging obstacles for climbers ascending the mountain.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sagarmatha
this entity surface form:
HillaryStep