Isthmus of Panama
E1204
The Isthmus of Panama is the narrow strip of land in Central America that links North and South America and separates the Caribbean Sea from the Pacific Ocean.
All labels observed (10)
| Label | Occurrences |
|---|---|
| Isthmus of Panama canonical | 44 |
| Isthmus of Central America | 2 |
| Central American Isthmus | 1 |
| Isthmus of Darién | 1 |
| Isthmus of Panama uplift | 1 |
| Istmo de Panamá | 1 |
| Panama Isthmus | 1 |
| Panama Isthmus route | 1 |
| Panama-Colombia margin | 1 |
| Panamanian land bridge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16814 — 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: Isthmus of Panama Context triple: [North America, connectedBy, Isthmus of Panama]
-
A.
Panama
Panama is a Central American country known for the Panama Canal, a major international shipping route connecting the Atlantic and Pacific Oceans.
-
B.
Puerto Rico Trench
The Puerto Rico Trench is a deep oceanic trench in the western Atlantic, marking the boundary between the Caribbean and North American tectonic plates and containing the region’s greatest ocean depths.
-
C.
San Juan
San Juan is the largest city and main cultural, economic, and tourism hub of Puerto Rico, known for its historic colonial architecture and vibrant coastal setting.
-
D.
Ecuador
Ecuador is a South American country on the Pacific coast, known for its diverse geography that includes part of the Amazon rainforest, the Andean highlands, and the Galápagos Islands.
-
E.
Equator
The Equator is an imaginary line encircling the Earth at equal distance from the poles, dividing the planet into Northern and Southern Hemispheres and marking 0° latitude.
- 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: Isthmus of Panama Target entity description: The Isthmus of Panama is the narrow strip of land in Central America that links North and South America and separates the Caribbean Sea from the Pacific Ocean.
-
A.
Panama
Panama is a Central American country known for the Panama Canal, a major international shipping route connecting the Atlantic and Pacific Oceans.
-
B.
Puerto Rico Trench
The Puerto Rico Trench is a deep oceanic trench in the western Atlantic, marking the boundary between the Caribbean and North American tectonic plates and containing the region’s greatest ocean depths.
-
C.
San Juan
San Juan is the largest city and main cultural, economic, and tourism hub of Puerto Rico, known for its historic colonial architecture and vibrant coastal setting.
-
D.
Ecuador
Ecuador is a South American country on the Pacific coast, known for its diverse geography that includes part of the Amazon rainforest, the Andean highlands, and the Galápagos Islands.
-
E.
Equator
The Equator is an imaginary line encircling the Earth at equal distance from the poles, dividing the planet into Northern and Southern Hemispheres and marking 0° latitude.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
isthmus ⓘ landform ⓘ |
| alsoKnownAs |
Isthmus of Panama
ⓘ
surface form:
Istmo de Panamá
|
| borderedBy |
Caribbean Sea
ⓘ
Pacific Ocean ⓘ |
| connectsOceanBasins |
Atlantic Ocean
ⓘ
Pacific Ocean ⓘ |
| continentConnector |
North America
ⓘ
South America ⓘ |
| country | Panama ⓘ |
| crossedBy | Trans-Panama Highway ⓘ |
| formationCompletedApproximately | 3 million years ago ⓘ |
| formedDuring | Pliocene epoch ⓘ |
| geologicalType | volcanic arc origin ⓘ |
| hasHighestPoint | Cerro Jefe ⓘ |
| hasLengthApproximately |
400 miles
ⓘ
640 kilometers ⓘ |
| hasMajorCity |
Colón
ⓘ
Panama City ⓘ |
| hasMinimumWidthApproximately |
31 miles
ⓘ
50 kilometers ⓘ |
| locatedIn | Panama ⓘ |
| locatedInRegion | Central America ⓘ |
| locatedOnTectonicPlate |
Caribbean Plate
ⓘ
Nazca Plate (adjacent) ⓘ |
| partOf | Panama ⓘ |
| separates |
Atlantic Ocean
ⓘ
Caribbean Sea ⓘ Pacific Ocean ⓘ |
| significance |
altered global ocean circulation
ⓘ
enabled Great American Biotic Interchange ⓘ influenced global climate ⓘ |
| traversedBy | Panama Canal ⓘ |
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: Isthmus of Panama Description of subject: The Isthmus of Panama is the narrow strip of land in Central America that links North and South America and separates the Caribbean Sea from the Pacific Ocean.
Referenced by (54)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Istmo de Panamá
this entity surface form:
Panama Isthmus route
this entity surface form:
Panama Isthmus
this entity surface form:
Isthmus of Darién
Great American Biotic Interchange between North and South America
→
involvedDispersalRoute
→
Isthmus of Panama
ⓘ
subject surface form:
Great American Biotic Interchange
this entity surface form:
Panamanian land bridge
subject surface form:
Great American Biotic Interchange
subject surface form:
Panama Canal Zone
this entity surface form:
Panama-Colombia margin
subject surface form:
Smithsonian Tropical Research Institute
this entity surface form:
Isthmus of Panama uplift
this entity surface form:
Central American Isthmus