Rhomboidal Pyramid
E341585
The Rhomboidal Pyramid, better known as the Bent Pyramid, is an ancient Egyptian pyramid at Dahshur notable for its unusual change in angle partway up its sides, giving it a distinctive bent profile.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rhomboidal Pyramid canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3265153 — 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: Rhomboidal Pyramid Context triple: [Bent Pyramid, alsoKnownAs, Rhomboidal Pyramid]
-
A.
Prisms
Prisms is a collection of critical essays by Theodor W. Adorno that explores literature, philosophy, and culture through the lens of his distinctive Marxist and critical theory perspective.
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B.
Pyramid
Pyramid is a lightweight, flexible Python web framework designed to scale from small applications to large, complex systems while offering great configurability and extensibility.
-
C.
Penrose triangle
The Penrose triangle is an impossible optical illusion figure that appears to be a solid three-dimensional triangle but cannot exist in Euclidean space.
-
D.
Steinmetz solid
The Steinmetz solid is a three-dimensional geometric shape formed by the intersection of two or more cylinders at right angles, often studied in calculus and solid geometry for its interesting volume and symmetry properties.
-
E.
Cone
Cone is a surname most notably associated with David Cone, a former Major League Baseball pitcher and five-time World Series champion.
- 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: Rhomboidal Pyramid Target entity description: The Rhomboidal Pyramid, better known as the Bent Pyramid, is an ancient Egyptian pyramid at Dahshur notable for its unusual change in angle partway up its sides, giving it a distinctive bent profile.
-
A.
Prisms
Prisms is a collection of critical essays by Theodor W. Adorno that explores literature, philosophy, and culture through the lens of his distinctive Marxist and critical theory perspective.
-
B.
Pyramid
Pyramid is a lightweight, flexible Python web framework designed to scale from small applications to large, complex systems while offering great configurability and extensibility.
-
C.
Penrose triangle
The Penrose triangle is an impossible optical illusion figure that appears to be a solid three-dimensional triangle but cannot exist in Euclidean space.
-
D.
Steinmetz solid
The Steinmetz solid is a three-dimensional geometric shape formed by the intersection of two or more cylinders at right angles, often studied in calculus and solid geometry for its interesting volume and symmetry properties.
-
E.
Cone
Cone is a surname most notably associated with David Cone, a former Major League Baseball pitcher and five-time World Series champion.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Egyptian pyramid
ⓘ
archaeological site ⓘ cultural heritage monument ⓘ tourist attraction ⓘ |
| alsoKnownAs |
Bent Pyramid
ⓘ
Southern Shining Pyramid ⓘ |
| architecturalStyle | true pyramid ⓘ |
| baseLength | about 188 meters ⓘ |
| builder |
Pharaoh Sneferu
ⓘ
surface form:
Sneferu
|
| builtFor | Pharaoh Sneferu ⓘ |
| constructionStart | circa 2600 BCE ⓘ |
| coordinateLocation | 29.7933°N 31.2053°E ⓘ |
| country | Egypt ⓘ |
| culture | Ancient Egyptian ⓘ |
| dynasty | Fourth Dynasty of Egypt ⓘ |
| excavatedBy | Ahmed Fakhry ⓘ |
| function | royal tomb ⓘ |
| hasChamber |
lower burial chamber
ⓘ
upper burial chamber ⓘ |
| hasEntrance |
north entrance
ⓘ
west entrance ⓘ |
| hasFeature |
corbelled ceilings in internal chambers
ⓘ
internal passageways connecting chambers ⓘ |
| hasShape | four-sided pyramid with broken slope ⓘ |
| hasSubstructure |
causeway
ⓘ
satellite pyramid ⓘ valley temple (largely destroyed) ⓘ |
| height | about 101 meters ⓘ |
| heritageStatus | part of UNESCO World Heritage Site "Memphis and its Necropolis – the Pyramid Fields from Giza to Dahshur" ⓘ |
| locatedIn |
Dahshur necropolis
ⓘ
surface form:
Dahshur
Giza Governorate ⓘ Memphis necropolis ⓘ New Valley region of Egypt ⓘ
surface form:
Western Desert edge of the Nile Valley
|
| lowerSlopeAngle | about 54 degrees ⓘ |
| materialUsed |
Tura limestone casing
ⓘ
limestone ⓘ |
| nearby |
Black Pyramid
ⓘ
Red Pyramid ⓘ |
| notableFeature |
bent profile
ⓘ
change in inclination angle partway up its sides ⓘ well-preserved outer casing stones ⓘ |
| openToPublic | yes ⓘ |
| partOf |
Dahshur necropolis
ⓘ
surface form:
Dahshur pyramid field
|
| period | Old Kingdom of Egypt ⓘ |
| surveyedBy |
John Shae Perring
ⓘ
Karl Richard Lepsius ⓘ |
| UNESCOSiteId | 86 ⓘ |
| UNESCOWorldHeritageSiteSince | 1979 ⓘ |
| upperSlopeAngle | about 43 degrees ⓘ |
| volume | approximately 1.2 million cubic meters ⓘ |
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: Rhomboidal Pyramid Description of subject: The Rhomboidal Pyramid, better known as the Bent Pyramid, is an ancient Egyptian pyramid at Dahshur notable for its unusual change in angle partway up its sides, giving it a distinctive bent profile.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.