Linha do Corgo (partly closed)
E302849
Linha do Corgo (partly closed) is a historic narrow-gauge railway line in northern Portugal that once connected Régua to Chaves through the Douro and Trás-os-Montes regions, much of which has since been decommissioned.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Linha do Corgo (partly closed) canonical | 1 |
| Porto–Vila Real (historically via Linha do Corgo, now discontinued) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2853862 — 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: Linha do Corgo (partly closed) Context triple: [Portuguese national rail network, includesLine, Linha do Corgo (partly closed)]
-
A.
Main South Line
The Main South Line is a major railway line in New Zealand’s South Island that runs south from Christchurch through key regional centers, historically serving as an important freight and passenger route.
-
B.
Fen Line
The Fen Line is a railway route in eastern England that runs north from Cambridge towards King’s Lynn, serving towns and communities across Cambridgeshire and Norfolk.
-
C.
Warminster Line
The Warminster Line is a commuter rail service in the Philadelphia region that connects Center City with suburban communities in and around Warminster, Pennsylvania.
-
D.
Caterham line
The Caterham line is a suburban railway route in Surrey, England, connecting the town of Caterham with the main London rail network.
-
E.
Sanin Main Line (partial)
The Sanin Main Line is a major railway route in western Japan that runs along the Sea of Japan coast, connecting numerous cities and rural areas across the San'in region.
- 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: Linha do Corgo (partly closed) Target entity description: Linha do Corgo (partly closed) is a historic narrow-gauge railway line in northern Portugal that once connected Régua to Chaves through the Douro and Trás-os-Montes regions, much of which has since been decommissioned.
-
A.
Main South Line
The Main South Line is a major railway line in New Zealand’s South Island that runs south from Christchurch through key regional centers, historically serving as an important freight and passenger route.
-
B.
Fen Line
The Fen Line is a railway route in eastern England that runs north from Cambridge towards King’s Lynn, serving towns and communities across Cambridgeshire and Norfolk.
-
C.
Warminster Line
The Warminster Line is a commuter rail service in the Philadelphia region that connects Center City with suburban communities in and around Warminster, Pennsylvania.
-
D.
Caterham line
The Caterham line is a suburban railway route in Surrey, England, connecting the town of Caterham with the main London rail network.
-
E.
Sanin Main Line (partial)
The Sanin Main Line is a major railway route in western Japan that runs along the Sea of Japan coast, connecting numerous cities and rural areas across the San'in region.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
narrow-gauge railway line
ⓘ
railway line in Portugal ⓘ |
| category |
metre gauge railways in Portugal
ⓘ
narrow-gauge railways in Portugal ⓘ rail transport in Vila Real District ⓘ |
| connectedTo | Linha do Douro ⓘ |
| country | Portugal ⓘ |
| electrification | not electrified ⓘ |
| endPoint | Chaves ⓘ |
| gauge |
1000 mm
ⓘ
metre gauge ⓘ |
| historicUse |
freight transport
ⓘ
passenger transport ⓘ |
| infrastructureManager | REFER ⓘ |
| locatedIn | northern Portugal ⓘ |
| locatedInRegion |
Douro River
ⓘ
surface form:
Douro
Trás-os-Montes e Alto Douro ⓘ
surface form:
Trás-os-Montes
|
| operator | Comboios de Portugal ⓘ |
| partOf | Portuguese narrow-gauge network ⓘ |
| startPoint | Régua ⓘ |
| status |
partly closed
ⓘ
partly decommissioned ⓘ |
| terminusStation |
Chaves railway station
ⓘ
Régua railway station ⓘ |
| trackType | single track ⓘ |
| usedRollingStockType |
diesel multiple units
ⓘ
steam locomotives ⓘ |
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: Linha do Corgo (partly closed) Description of subject: Linha do Corgo (partly closed) is a historic narrow-gauge railway line in northern Portugal that once connected Régua to Chaves through the Douro and Trás-os-Montes regions, much of which has since been decommissioned.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Intercidades
this entity surface form:
Porto–Vila Real (historically via Linha do Corgo, now discontinued)