Convex and Concave
E771377
"Convex and Concave" is a 1955 lithograph print by M. C. Escher that depicts an architectural scene with impossible perspectives that can be interpreted in multiple, contradictory ways.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Convex and Concave canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8998092 — 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: Convex and Concave Context triple: [M. C. Escher, notableWork, Convex and Concave]
-
A.
Concavo
Concavo is a prominent mountain peak in Colombia’s Sierra Nevada del Cocuy range, known for its high elevation and glaciated Andean landscapes.
-
B.
The Convexity of Hilltops
"The Convexity of Hilltops" is a seminal geomorphological study by American geologist Grove Karl Gilbert that analyzes the shapes and formation processes of hilltops in relation to erosion and landscape evolution.
-
C.
Cone
Cone is a surname most notably associated with David Cone, a former Major League Baseball pitcher and five-time World Series champion.
-
D.
Shape
Shape is a health and fitness magazine and digital brand focused on exercise, nutrition, and wellness content, owned by Dotdash Meredith.
-
E.
SHAPE
SHAPE is the central military command headquarters of NATO responsible for planning and executing the alliance’s collective defense operations in Europe.
- 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: Convex and Concave Target entity description: "Convex and Concave" is a 1955 lithograph print by M. C. Escher that depicts an architectural scene with impossible perspectives that can be interpreted in multiple, contradictory ways.
-
A.
Concavo
Concavo is a prominent mountain peak in Colombia’s Sierra Nevada del Cocuy range, known for its high elevation and glaciated Andean landscapes.
-
B.
The Convexity of Hilltops
"The Convexity of Hilltops" is a seminal geomorphological study by American geologist Grove Karl Gilbert that analyzes the shapes and formation processes of hilltops in relation to erosion and landscape evolution.
-
C.
Cone
Cone is a surname most notably associated with David Cone, a former Major League Baseball pitcher and five-time World Series champion.
-
D.
Shape
Shape is a health and fitness magazine and digital brand focused on exercise, nutrition, and wellness content, owned by Dotdash Meredith.
-
E.
SHAPE
SHAPE is the central military command headquarters of NATO responsible for planning and executing the alliance’s collective defense operations in Europe.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
artwork
ⓘ
lithograph print ⓘ |
| artist | M. C. Escher NERFINISHED ⓘ |
| artMovement |
Op art
ⓘ
mathematical art ⓘ |
| countryOfOrigin | Netherlands ⓘ |
| creator | M. C. Escher NERFINISHED ⓘ |
| creatorNationality | Dutch ⓘ |
| depicts |
ambiguous architecture
ⓘ
architectural scene ⓘ impossible perspectives ⓘ |
| genre | impossible construction art ⓘ |
| hasArtStyle | black-and-white graphic art ⓘ |
| hasColorScheme | monochrome ⓘ |
| hasMedium | lithography ⓘ |
| hasPerspectiveType |
contradictory perspectives
ⓘ
multiple viewpoints ⓘ |
| hasSubjectMatter |
arches and columns
ⓘ
courtyard-like space ⓘ human figures ⓘ stairways ⓘ |
| hasTheme |
mathematical structure in art
ⓘ
paradox ⓘ perception ⓘ spatial ambiguity ⓘ |
| hasTitleLanguage | English ⓘ |
| hasVisualFeature |
figures standing in conflicting gravitational directions
ⓘ
optical illusion ⓘ reversible figure-ground relationships ⓘ staircases with impossible orientation ⓘ |
| influencedBy |
architectural design
ⓘ
mathematics ⓘ perspective drawing ⓘ |
| notableFor |
ability to be interpreted in multiple contradictory ways
ⓘ
ambiguous orientation of space ⓘ use of convex and concave forms in visual paradox ⓘ |
| originalLanguageTitle | Convex and Concave NERFINISHED ⓘ |
| partOf | M. C. Escher’s body of work ⓘ |
| printingTechnique | lithograph ⓘ |
| publicationYear | 1955 ⓘ |
| relatedWorkByArtist |
Ascending and Descending
NERFINISHED
ⓘ
House of Stairs NERFINISHED ⓘ Relativity NERFINISHED ⓘ |
| usesTechnique |
geometric construction
ⓘ
precise line work ⓘ |
| yearOfCreation | 1955 ⓘ |
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: Convex and Concave Description of subject: "Convex and Concave" is a 1955 lithograph print by M. C. Escher that depicts an architectural scene with impossible perspectives that can be interpreted in multiple, contradictory ways.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.