Lisbon Tramway
E19501
The Lisbon Tramway is a historic network of yellow streetcars that navigate Lisbon’s steep, narrow streets and serve as both public transport and a popular tourist attraction.
All labels observed (10)
| Label | Occurrences |
|---|---|
| Lisbon tram network | 10 |
| Lisbon Tramway canonical | 1 |
| Lisbon tram 12E | 1 |
| Lisbon tram 28E | 1 |
| Lisbon tram line 15E | 1 |
| Lisbon tram line 28E | 1 |
| Lisbon tram route 12E | 1 |
| Lisbon tram route 15E | 1 |
| Lisbon tram route 18E | 1 |
| Lisbon tram route 28E | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T154680 — 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: Lisbon Tramway Context triple: [Lisbon, transportSystem, Lisbon Tramway]
-
A.
Lisbon Metro
Lisbon Metro is the rapid transit system serving Portugal’s capital, providing an extensive network of underground and suburban rail lines across the Lisbon metropolitan area.
-
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.
Comboios de Portugal
Comboios de Portugal is Portugal’s national state-owned railway company, responsible for operating most of the country’s passenger and freight train services.
-
D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
E.
Alexandria tram
The Alexandria tram is one of the oldest operating electric tram systems in the world, serving as a key component of public transportation in the Egyptian coastal city of Alexandria.
- 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: Lisbon Tramway Target entity description: The Lisbon Tramway is a historic network of yellow streetcars that navigate Lisbon’s steep, narrow streets and serve as both public transport and a popular tourist attraction.
-
A.
Lisbon Metro
Lisbon Metro is the rapid transit system serving Portugal’s capital, providing an extensive network of underground and suburban rail lines across the Lisbon metropolitan area.
-
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.
Comboios de Portugal
Comboios de Portugal is Portugal’s national state-owned railway company, responsible for operating most of the country’s passenger and freight train services.
-
D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
E.
Alexandria tram
The Alexandria tram is one of the oldest operating electric tram systems in the world, serving as a key component of public transportation in the Egyptian coastal city of Alexandria.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
public transport system
ⓘ
tourist attraction ⓘ tramway network ⓘ |
| connectsTo |
Lisbon Metro
ⓘ
Lisbon bus network ⓘ Lisbon funiculars ⓘ |
| famousRoute | Route 28E ⓘ |
| hasCharacteristicColor | yellow ⓘ |
| hasFareSystem | public transport fares ⓘ |
| hasFunction |
tourist sightseeing
ⓘ
urban transport ⓘ |
| hasHeritageValue | historic transport system ⓘ |
| hasInaugurationPeriod | late 19th century ⓘ |
| hasInfrastructureType | street-running tram tracks ⓘ |
| hasOperatingEnvironment | mixed traffic with road vehicles ⓘ |
| hasPropulsionSystem | electric traction ⓘ |
| hasRollingStockType |
articulated trams
ⓘ
remodelado trams ⓘ |
| hasRoute |
Route 12E
ⓘ
Route 15E ⓘ Route 18E ⓘ Route 24E ⓘ Route 25E ⓘ Route 28E ⓘ |
| hasTouristPopularity | high ⓘ |
| hasTrackGauge | 900 mm ⓘ |
| hasVehicleType |
streetcar
ⓘ
tram ⓘ |
| isKnownFor |
historic wooden trams
ⓘ
scenic city views ⓘ traditional yellow livery ⓘ |
| isPartOf | Lisbon public transport network ⓘ |
| isSubjectOf | travel guides about Lisbon ⓘ |
| locatedIn | Lisbon ⓘ |
| locatedInCountry | Portugal ⓘ |
| operatedBy | Carris ⓘ |
| replacedModeOfTransport | horse-drawn trams ⓘ |
| runsOn |
narrow streets
ⓘ
steep streets ⓘ |
| safetyRequirement | validation of tickets on board or before boarding ⓘ |
| servesArea |
Alfama
ⓘ
Baixa ⓘ Belém ⓘ Estrela ⓘ Graça ⓘ |
| usesTrackGauge | narrow gauge ⓘ |
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: Lisbon Tramway Description of subject: The Lisbon Tramway is a historic network of yellow streetcars that navigate Lisbon’s steep, narrow streets and serve as both public transport and a popular tourist attraction.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram line 28E
this entity surface form:
Lisbon tram line 15E
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram 28E
this entity surface form:
Lisbon tram 12E
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram network
this entity surface form:
Lisbon tram route 28E
this entity surface form:
Lisbon tram route 12E
subject surface form:
Estrela (Lisbon)
this entity surface form:
Lisbon tram network