Primera Angostura
E50873
Primera Angostura is a narrow channel within the Strait of Magellan in southern Chile, known as one of the key constricted passages along this historic maritime route between the Atlantic and Pacific Oceans.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Primera Angostura canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T401856 — 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: Primera Angostura Context triple: [Strait of Magellan, hasChannel, Primera Angostura]
-
A.
Caparrapí
Caparrapí is a municipality in central Colombia known for its rural character and location within the Andean region of the Cundinamarca Department.
-
B.
Quivicán
Quivicán is a municipality in western Cuba known for its agricultural activities and location within the province surrounding Havana.
-
C.
Darién Gap
The Darién Gap is a dense, roadless swath of jungle and swamp between Panama and Colombia known as one of the most dangerous and impassable stretches in the Americas.
-
D.
Tepehuán
The Tepehuán are an Indigenous people of northern Mexico known for their distinct language, traditional agriculture, and cultural practices rooted in the rugged highlands of the Sierra Madre Occidental.
-
E.
Bejucal
Bejucal is a Cuban town and municipality known for its historic role in the island’s early railway system and its traditional “Charangas de Bejucal” carnival festivities.
- 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: Primera Angostura Target entity description: Primera Angostura is a narrow channel within the Strait of Magellan in southern Chile, known as one of the key constricted passages along this historic maritime route between the Atlantic and Pacific Oceans.
-
A.
Caparrapí
Caparrapí is a municipality in central Colombia known for its rural character and location within the Andean region of the Cundinamarca Department.
-
B.
Quivicán
Quivicán is a municipality in western Cuba known for its agricultural activities and location within the province surrounding Havana.
-
C.
Darién Gap
The Darién Gap is a dense, roadless swath of jungle and swamp between Panama and Colombia known as one of the most dangerous and impassable stretches in the Americas.
-
D.
Tepehuán
The Tepehuán are an Indigenous people of northern Mexico known for their distinct language, traditional agriculture, and cultural practices rooted in the rugged highlands of the Sierra Madre Occidental.
-
E.
Bejucal
Bejucal is a Cuban town and municipality known for its historic role in the island’s early railway system and its traditional “Charangas de Bejucal” carnival festivities.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
marine channel
ⓘ
strait ⓘ |
| connects | eastern section of the Strait of Magellan with central section of the Strait of Magellan ⓘ |
| country | Chile ⓘ |
| hasCharacteristic | constricted passage ⓘ |
| hasHistoricalSignificance |
important passage in the age of sail for ships rounding South America
ⓘ
part of traditional route avoiding Cape Horn ⓘ |
| hasNameLanguage | Spanish ⓘ |
| hasNavigationConstraint |
limited width for large vessels
ⓘ
requires careful pilotage ⓘ strong tidal currents ⓘ |
| hasNavigationImportance | key constriction point for vessels transiting the Strait of Magellan ⓘ |
| hasRelativeOrder | first major narrowing when entering the Strait of Magellan from the Atlantic side ⓘ |
| isComparedTo | Segunda Angostura ⓘ |
| isOnRouteOf | ships traveling between the Atlantic Ocean and Pacific Ocean via the Strait of Magellan ⓘ |
| isPartOf | global shipping routes around South America ⓘ |
| locatedIn |
Magallanes Region (historically)
ⓘ
surface form:
Magallanes Region
Patagonia ⓘ Strait of Magellan ⓘ southern Chile ⓘ |
| locatedInBodyOfWater | Strait of Magellan ⓘ |
| locatedOnCoastOf | South America ⓘ |
| nameMeaning | First Narrows ⓘ |
| partOf | historic maritime route between the Atlantic Ocean and the Pacific Ocean ⓘ |
| relativePosition | eastern of the main narrows of the Strait of Magellan ⓘ |
| separates |
Brunswick Peninsula
ⓘ
surface form:
Brunswick Peninsula from Tierra del Fuego archipelago
|
| usedFor |
fishing vessel transit
ⓘ
international maritime navigation ⓘ regional shipping ⓘ |
| waterwayType | narrow channel ⓘ |
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: Primera Angostura Description of subject: Primera Angostura is a narrow channel within the Strait of Magellan in southern Chile, known as one of the key constricted passages along this historic maritime route between the Atlantic and Pacific Oceans.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.