Red Line
E176756
The Red Line is one of the main lines of the Lisbon Metro system, connecting key transport hubs and eastern districts of Portugal’s capital.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Red Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T876777 — 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: Red Line Context triple: [Lisbon Metro, line, Red Line]
-
A.
Red Line
The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
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B.
Red Line
Red Line was the original name of Los Angeles Metro’s B Line, a heavy-rail subway corridor serving key neighborhoods between Downtown Los Angeles and North Hollywood.
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C.
Red Line
Red Line is one of the main rapid transit routes of the Dubai Metro, running along key areas of the city and serving many of its major commercial and residential districts.
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D.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
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E.
Red Line
Red Line is a major rapid transit route in the Washington Metro system, running through key areas of Washington, D.C., and its Maryland suburbs.
- 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: Red Line Target entity description: The Red Line is one of the main lines of the Lisbon Metro system, connecting key transport hubs and eastern districts of Portugal’s capital.
-
A.
Red Line
The Red Line is a major rapid transit route in the Boston metropolitan area, operated by the MBTA and running primarily north–south through key neighborhoods and suburbs.
-
B.
Red Line
Red Line is one of the main rapid transit routes of the Dubai Metro, running along key areas of the city and serving many of its major commercial and residential districts.
-
C.
Red Line
Red Line is a major rapid transit route in the Washington Metro system, running through key areas of Washington, D.C., and its Maryland suburbs.
-
D.
Red Line
The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
-
E.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport infrastructure ⓘ |
| cityServed | Lisbon ⓘ |
| connects |
Lisbon Airport to city centre
ⓘ
Oriente station ⓘ
surface form:
Oriente transport hub
key transport hubs in Lisbon ⓘ |
| connectsWith |
Lisbon Metro
ⓘ
surface form:
Blue Line (Lisbon Metro)
Lisbon Metro ⓘ
surface form:
Green Line (Lisbon Metro)
Lisbon Metro ⓘ
surface form:
Yellow Line (Lisbon Metro)
|
| country | Portugal ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareSystem | integrated Lisbon public transport fare system ⓘ |
| hasFeature | underground alignment ⓘ |
| hasRole | connect key transport hubs and eastern districts of Lisbon ⓘ |
| hasStation |
Aeroporto station
ⓘ
Alameda station ⓘ Bela Vista station ⓘ Cabo Ruivo station ⓘ Chelas station ⓘ Cabo Ruivo station ⓘ
surface form:
Encarnação station
Moscavide station ⓘ Olivais station ⓘ Oriente station ⓘ Saldanha station ⓘ São Sebastião station ⓘ |
| languageOfName | Portuguese ⓘ |
| lineColor | red ⓘ |
| locatedIn |
Lisbon
ⓘ
Portugal ⓘ |
| officialName | Linha Vermelha ⓘ |
| openingPurpose | serve Expo 98 area ⓘ |
| operator |
Lisbon Metro
ⓘ
surface form:
Metropolitano de Lisboa, EPE
|
| ownedBy |
Lisbon Metro
ⓘ
surface form:
Metropolitano de Lisboa, EPE
|
| partOf | Lisbon Metro ⓘ |
| publicTransportMode | metro ⓘ |
| serves |
Lisbon Oriente railway station
ⓘ
surface form:
Gare do Oriente bus terminal
Lisbon Airport ⓘ Oriente station ⓘ
surface form:
Oriente railway station
Parque das Nações ⓘ
surface form:
Parque das Nações district
eastern districts of Lisbon ⓘ |
| system | Lisbon Metro ⓘ |
| terminus |
Aeroporto station
ⓘ
São Sebastião station ⓘ |
| trackGauge | 1,435 mm standard gauge ⓘ |
| transportType | rapid transit ⓘ |
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: Red Line Description of subject: The Red Line is one of the main lines of the Lisbon Metro system, connecting key transport hubs and eastern districts of Portugal’s capital.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Line 1 (Barcelona Metro)