Plaza de Mayo station (Line A, Buenos Aires Underground)
E198916
Plaza de Mayo station (Line A, Buenos Aires Underground) is the historic terminus of Buenos Aires’ oldest subway line, located beneath the central Plaza de Mayo in the city’s downtown.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Plaza de Mayo station (Line A, Buenos Aires Underground) canonical | 2 |
| Plaza de Mayo (Line A, Buenos Aires Underground) | 1 |
| Plaza de Mayo (via Line A) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1778098 — 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: Plaza de Mayo station (Line A, Buenos Aires Underground) Context triple: [Plaza de Mayo, publicTransportConnection, Plaza de Mayo station (Line A, Buenos Aires Underground)]
-
A.
Federico Lacroze station
Federico Lacroze station is a major Buenos Aires Underground stop in the Chacarita neighborhood, serving as an important transport hub that connects subway services with suburban rail lines.
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B.
Buenos Aires Underground Line A
Buenos Aires Underground Line A is the oldest line of the Buenos Aires Metro, known for its historic wooden cars and route linking the city center with western neighborhoods.
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C.
Retiro station
Retiro station is a major Buenos Aires Underground terminus and transport hub located in the Retiro district of Argentina’s capital.
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D.
Santiago Metro La Moneda station
Santiago Metro La Moneda station is a central underground metro stop in Santiago, Chile, serving Line 1 and providing access to the government district and key civic landmarks.
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E.
Gran Vía metro station
Gran Vía metro station is a major Madrid Metro station in the city center, serving as an important interchange point near the Gran Vía thoroughfare.
- 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: Plaza de Mayo station (Line A, Buenos Aires Underground) Target entity description: Plaza de Mayo station (Line A, Buenos Aires Underground) is the historic terminus of Buenos Aires’ oldest subway line, located beneath the central Plaza de Mayo in the city’s downtown.
-
A.
Federico Lacroze station
Federico Lacroze station is a major Buenos Aires Underground stop in the Chacarita neighborhood, serving as an important transport hub that connects subway services with suburban rail lines.
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B.
Buenos Aires Underground Line A
Buenos Aires Underground Line A is the oldest line of the Buenos Aires Metro, known for its historic wooden cars and route linking the city center with western neighborhoods.
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C.
Retiro station
Retiro station is a major Buenos Aires Underground terminus and transport hub located in the Retiro district of Argentina’s capital.
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D.
Santiago Metro La Moneda station
Santiago Metro La Moneda station is a central underground metro stop in Santiago, Chile, serving Line 1 and providing access to the government district and key civic landmarks.
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E.
Gran Vía metro station
Gran Vía metro station is a major Madrid Metro station in the city center, serving as an important interchange point near the Gran Vía thoroughfare.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Buenos Aires Underground station
ⓘ
rapid transit station ⓘ terminus railway station ⓘ |
| adjacentStation | Perú station (Line A, Buenos Aires Underground) ⓘ |
| architecturalStyle | early 20th-century European-influenced underground design ⓘ |
| category |
Buenos Aires Underground Line A stations
ⓘ
Railway stations opened in 1913 ⓘ |
| city | Buenos Aires ⓘ |
| connectedTo | surface bus network around Plaza de Mayo ⓘ |
| constructionMethod | cut-and-cover ⓘ |
| country | Argentina ⓘ |
| electrification | third rail ⓘ |
| fareZone | Subte standard urban zone ⓘ |
| gauge | standard gauge ⓘ |
| hasAccess |
entrances on Plaza de Mayo
ⓘ
entrances on surrounding streets ⓘ |
| hasFeature |
historic tiling and signage
ⓘ
wooden escalators (partially preserved) ⓘ |
| hasLanguage | Spanish signage ⓘ |
| hasStationCode | A1 ⓘ |
| historicalSignificance |
one of the oldest metro stations in Latin America
ⓘ
terminus of the first subway line in Buenos Aires ⓘ |
| line | Line A ⓘ |
| locatedIn |
Monserrat, Buenos Aires
ⓘ
linked to:
Buenos Aires central business district
|
| locatedInTimeZone | UTC−03:00 ⓘ |
| locatedUnder | Plaza de Mayo ⓘ |
| near |
Avenida de Mayo
ⓘ
Buenos Aires Cabildo ⓘ
linked to:
Cabildo of Buenos Aires
Casa Rosada ⓘ Metropolitan Cathedral of Buenos Aires ⓘ
linked to:
Buenos Aires Metropolitan Cathedral
|
| numberOfPlatforms | 2 ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 1913-12-01 ⓘ |
| operator |
Emova Movilidad (concessionaire)
ⓘ
linked to:
Emova Movilidad
Subterráneos de Buenos Aires (SBASE) ⓘ |
| owner | Government of the City of Buenos Aires ⓘ |
| partOf | historic core of Buenos Aires ⓘ |
| partOfOpeningSection | Plaza de Mayo–Plaza Miserere section of Line A ⓘ |
| platformType | side platforms ⓘ |
| positionOnLine | eastern terminus ⓘ |
| safetyFeature |
CCTV surveillance
ⓘ
fire safety systems ⓘ |
| serves |
Buenos Aires city centre
ⓘ
linked to:
Buenos Aires central business district
Casa Rosada area ⓘ financial district of Buenos Aires ⓘ |
| system | Buenos Aires Underground ⓘ |
| terminusOf |
Line A of the Buenos Aires Underground
ⓘ
linked to:
Buenos Aires Underground Line A
|
| ticketingSystem | SUBE card ⓘ |
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: Plaza de Mayo station (Line A, Buenos Aires Underground) Description of subject: Plaza de Mayo station (Line A, Buenos Aires Underground) is the historic terminus of Buenos Aires’ oldest subway line, located beneath the central Plaza de Mayo in the city’s downtown.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
Plaza de Mayo
→
publicTransportConnection
→
Plaza de Mayo station (Line A, Buenos Aires Underground)
ⓘ
Bolívar station (Line E, Buenos Aires Underground)
→
connectsTo
→
Plaza de Mayo (Line A, Buenos Aires Underground)
ⓘ
linked to: Plaza de Mayo station (Line A, Buenos Aires Underground)
linked to: Plaza de Mayo station (Line A, Buenos Aires Underground)
Perú station (Line A, Buenos Aires Underground)
→
adjacentStation
→
Plaza de Mayo station (Line A, Buenos Aires Underground)
ⓘ