Fertagus
E116826
Fertagus is a private suburban rail operator serving the Lisbon metropolitan area, notably running commuter trains across the 25 de Abril Bridge between Lisbon and the Setúbal Peninsula.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T876771 — 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: Fertagus Context triple: [Lisbon Metro, fareIntegrationWith, Fertagus]
-
A.
Fagasa
Fagasa is a coastal village on the island of Tutuila in American Samoa, known for its scenic bay and surrounding rainforest-covered hills.
-
B.
Fressenda
Fressenda was an 11th-century Norman noblewoman of the Hauteville family, notable as the wife of Tancred of Hauteville and a matriarch of the Norman rulers in southern Italy and Sicily.
-
C.
Agria
Agria is a coastal town in the Magnesia regional unit of Thessaly, Greece, near the city of Volos.
-
D.
Mauregard
Mauregard is a small commune in the Seine-et-Marne department of the Île-de-France region in north-central France, situated near Paris Charles de Gaulle Airport.
-
E.
Neraudia
Neraudia is a small genus of flowering plants in the hemp family Cannabaceae, native to Hawaii and known for its often rare and endemic shrub species.
- 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: Fertagus Target entity description: Fertagus is a private suburban rail operator serving the Lisbon metropolitan area, notably running commuter trains across the 25 de Abril Bridge between Lisbon and the Setúbal Peninsula.
-
A.
Fagasa
Fagasa is a coastal village on the island of Tutuila in American Samoa, known for its scenic bay and surrounding rainforest-covered hills.
-
B.
Fressenda
Fressenda was an 11th-century Norman noblewoman of the Hauteville family, notable as the wife of Tancred of Hauteville and a matriarch of the Norman rulers in southern Italy and Sicily.
-
C.
Agria
Agria is a coastal town in the Magnesia regional unit of Thessaly, Greece, near the city of Volos.
-
D.
Mauregard
Mauregard is a small commune in the Seine-et-Marne department of the Île-de-France region in north-central France, situated near Paris Charles de Gaulle Airport.
-
E.
Neraudia
Neraudia is a small genus of flowering plants in the hemp family Cannabaceae, native to Hawaii and known for its often rare and endemic shrub species.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
railway company
ⓘ
train operating company ⓘ |
| areaOfOperation |
north bank of Tagus River
ⓘ
south bank of Tagus River ⓘ |
| bridgeCrossed | 25 de Abril Bridge ⓘ |
| connects |
Lisbon
ⓘ
Setúbal Peninsula ⓘ |
| country | Portugal ⓘ |
| crosses | Tagus River ⓘ |
| electrification | 25 kV AC overhead line ⓘ |
| fareSystem | integrated with Lisbon metropolitan transport fares ⓘ |
| hasServicePattern | commuter services between Lisbon and Setúbal area ⓘ |
| notableFeature | first private operator of suburban passenger trains in Portugal ⓘ |
| operates |
commuter rail services
ⓘ
suburban rail services ⓘ |
| operatesAcross | 25 de Abril Bridge ⓘ |
| operatesIn |
Lisbon
ⓘ
Setúbal Peninsula ⓘ |
| operatesOn |
Linha do Sul
ⓘ
rail corridor between Lisbon and Setúbal ⓘ |
| regionServed |
Lisbon District
ⓘ
Setúbal District ⓘ |
| rollingStockType | electric multiple unit ⓘ |
| serves | Lisbon metropolitan area ⓘ |
| serviceCategory |
commuter railway
ⓘ
suburban railway ⓘ |
| serviceType |
commuter rail
ⓘ
passenger transport ⓘ |
| trackGauge | Iberian gauge ⓘ |
| transportMode | rail ⓘ |
| usesInfrastructureOf | Infraestruturas de Portugal ⓘ |
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: Fertagus Description of subject: Fertagus is a private suburban rail operator serving the Lisbon metropolitan area, notably running commuter trains across the 25 de Abril Bridge between Lisbon and the Setúbal Peninsula.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Fertagus