Porto Metro
E308152
Porto Metro is the light rail and rapid transit system serving the Porto metropolitan area in northern Portugal.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Porto Metro canonical | 5 |
| Porto urban rail network | 4 |
| Metro do Porto | 2 |
| Metro do Porto, S.A. | 2 |
| Porto Metro Line E | 2 |
| Porto Metro Line D | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2893888 — 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: Porto Metro Context triple: [Urbanos do Porto, connectsWith, Porto Metro]
-
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.
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B.
Lisbon Tramway
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.
-
C.
São Paulo Metro
The São Paulo Metro is a major rapid transit system serving the city of São Paulo, Brazil, known for its extensive network, high ridership, and role as a backbone of the city's public transportation.
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D.
Lisbon public transport network
The Lisbon public transport network is the integrated system of trams, buses, metro lines, funiculars, lifts, and suburban trains that serves the city of Lisbon and its surrounding areas.
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E.
Lisbon funiculars
The Lisbon funiculars are historic cable-operated hillside railways that help passengers navigate the steep slopes of Portugal’s capital, serving both as practical public transport and popular tourist attractions.
- 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: Porto Metro Target entity description: Porto Metro is the light rail and rapid transit system serving the Porto metropolitan area in northern Portugal.
-
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.
Lisbon Tramway
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.
-
C.
São Paulo Metro
The São Paulo Metro is a major rapid transit system serving the city of São Paulo, Brazil, known for its extensive network, high ridership, and role as a backbone of the city's public transportation.
-
D.
Lisbon public transport network
The Lisbon public transport network is the integrated system of trams, buses, metro lines, funiculars, lifts, and suburban trains that serves the city of Lisbon and its surrounding areas.
-
E.
Lisbon funiculars
The Lisbon funiculars are historic cable-operated hillside railways that help passengers navigate the steep slopes of Portugal’s capital, serving both as practical public transport and popular tourist attractions.
- F. None of above. chosen
Statements (48)
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: Porto Metro Description of subject: Porto Metro is the light rail and rapid transit system serving the Porto metropolitan area in northern Portugal.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Porto Metro
subject linked to:
Vila Nova de Gaia, Portugal
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro
linked to: Porto Metro