Beira Baixa line
E540306
The Beira Baixa line is a Portuguese railway route that connects central inland regions to the national rail network, historically serving as an important link for passenger and freight transport.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Beira Baixa Line | 3 |
| Beira Baixa line canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5719444 — 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: Beira Baixa line Context triple: [Abrantes, railwayServedBy, Beira Baixa line]
-
A.
Lisbon–Porto main line
The Lisbon–Porto main line is Portugal’s principal railway corridor, connecting the capital Lisbon with the northern city of Porto and serving major intermediate urban centers.
-
B.
Algarve line
The Algarve line is a major railway route in southern Portugal that connects the region’s coastal towns and cities along the Algarve.
-
C.
Linha de Leixões
Linha de Leixões is a freight-focused railway line in the Porto metropolitan area of Portugal, connecting the Port of Leixões with the national rail network.
-
D.
Linha de Guimarães
Linha de Guimarães is a railway line in northern Portugal that connects Porto to the city of Guimarães, serving as an important regional passenger route.
-
E.
Linha de Braga
Linha de Braga is a suburban railway line in northern Portugal that connects the city of Braga to the Porto metropolitan rail network.
- 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: Beira Baixa line Target entity description: The Beira Baixa line is a Portuguese railway route that connects central inland regions to the national rail network, historically serving as an important link for passenger and freight transport.
-
A.
Lisbon–Porto main line
The Lisbon–Porto main line is Portugal’s principal railway corridor, connecting the capital Lisbon with the northern city of Porto and serving major intermediate urban centers.
-
B.
Algarve line
The Algarve line is a major railway route in southern Portugal that connects the region’s coastal towns and cities along the Algarve.
-
C.
Linha de Leixões
Linha de Leixões is a freight-focused railway line in the Porto metropolitan area of Portugal, connecting the Port of Leixões with the national rail network.
-
D.
Linha de Guimarães
Linha de Guimarães is a railway line in northern Portugal that connects Porto to the city of Guimarães, serving as an important regional passenger route.
-
E.
Linha de Braga
Linha de Braga is a suburban railway line in northern Portugal that connects the city of Braga to the Porto metropolitan rail network.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connectsTo | Portuguese national rail network ⓘ |
| country | Portugal ⓘ |
| electrification | 25 kV 50 Hz AC overhead line ⓘ |
| gauge | Iberian gauge ⓘ |
| hasFunction |
long‑distance connectivity
ⓘ
regional connectivity ⓘ |
| historicalSignificance | important inland connection for central Portugal ⓘ |
| locatedIn |
Beira Baixa
ⓘ
central Portugal ⓘ |
| operator | Infraestruturas de Portugal ⓘ |
| owner | Infraestruturas de Portugal ⓘ |
| partOf |
Portuguese railway network
ⓘ
linked to:
Portuguese national rail network
|
| primaryUse |
freight transport
ⓘ
passenger transport ⓘ |
| railwaySystem |
Portuguese Railways
ⓘ
linked to:
Comboios de Portugal (CP)
|
| regionServed | central inland regions of Portugal ⓘ |
| status | in operation ⓘ |
| trackGauge | 1668 mm ⓘ |
| transportMode | rail ⓘ |
| usedFor |
commuter travel
ⓘ
intercity travel ⓘ movement of agricultural products ⓘ movement of industrial freight ⓘ |
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: Beira Baixa line Description of subject: The Beira Baixa line is a Portuguese railway route that connects central inland regions to the national rail network, historically serving as an important link for passenger and freight transport.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Beira Baixa line
linked to: Beira Baixa line
linked to: Beira Baixa line