Rio de Janeiro Metro
E712283
The Rio de Janeiro Metro is the rapid transit system serving the city of Rio de Janeiro, Brazil, providing high-capacity urban rail transport across key neighborhoods and metropolitan areas.
All labels observed (9)
| Label | Occurrences |
|---|---|
| Rio de Janeiro Metro canonical | 12 |
| Rio de Janeiro Metro Line 1 | 5 |
| Metrô Rio | 4 |
| MetrôRio | 4 |
| Rio de Janeiro Metro Line 2 | 3 |
| Rio de Janeiro Metro fare system | 3 |
| Rio de Janeiro Metro system | 2 |
| Linha 4 of Rio de Janeiro Metro | 1 |
| Rio de Janeiro Metro network | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8142131 — 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: Rio de Janeiro Metro Context triple: [Kawasaki multiple units, usedIn, Rio de Janeiro Metro]
-
A.
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.
-
B.
Brasília Metro
The Brasília Metro is the rapid transit system serving Brazil’s capital, connecting key government, residential, and commercial areas across the Federal District.
-
C.
Belo Horizonte Metro
The Belo Horizonte Metro is a rapid transit system serving the metropolitan area of Belo Horizonte, Brazil, providing urban rail transport across key districts of the city.
-
D.
São Paulo Metro Line 4-Yellow
São Paulo Metro Line 4-Yellow is a major driverless metro line in São Paulo that connects key central and western districts, easing congestion and integrating with several other lines in the city’s rapid transit network.
-
E.
São Paulo Metro Line 3-Red
São Paulo Metro Line 3-Red is one of the main rapid transit lines in São Paulo, Brazil, running east–west through central areas and serving as a heavily used backbone of the city’s metro system.
- 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: Rio de Janeiro Metro Target entity description: The Rio de Janeiro Metro is the rapid transit system serving the city of Rio de Janeiro, Brazil, providing high-capacity urban rail transport across key neighborhoods and metropolitan areas.
-
A.
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.
-
B.
Brasília Metro
The Brasília Metro is the rapid transit system serving Brazil’s capital, connecting key government, residential, and commercial areas across the Federal District.
-
C.
Belo Horizonte Metro
The Belo Horizonte Metro is a rapid transit system serving the metropolitan area of Belo Horizonte, Brazil, providing urban rail transport across key districts of the city.
-
D.
São Paulo Metro Line 4-Yellow
São Paulo Metro Line 4-Yellow is a major driverless metro line in São Paulo that connects key central and western districts, easing congestion and integrating with several other lines in the city’s rapid transit network.
-
E.
São Paulo Metro Line 3-Red
São Paulo Metro Line 3-Red is one of the main rapid transit lines in São Paulo, Brazil, running east–west through central areas and serving as a heavily used backbone of the city’s metro system.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
metro system
ⓘ
rapid transit system ⓘ |
| connectsWith |
Bus Rapid Transit (BRT) corridors in Rio de Janeiro
ⓘ
SuperVia urban rail network NERFINISHED ⓘ bus networks in Rio de Janeiro ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareMedium | contactless smart card ⓘ |
| fareSystem | flat fare with integrated tickets ⓘ |
| hasDepot | maintenance and storage facilities in Rio de Janeiro ⓘ |
| hasFeature |
air-conditioned trains
ⓘ
elevated sections ⓘ integrated ticketing with buses ⓘ underground sections ⓘ |
| line |
Line 1
NERFINISHED
ⓘ
Line 2 NERFINISHED ⓘ Line 4 NERFINISHED ⓘ |
| locatedIn |
Rio de Janeiro
ⓘ
Southeast Region, Brazil NERFINISHED ⓘ State of Rio de Janeiro NERFINISHED ⓘ |
| notableStation |
Barra da Tijuca stations
ⓘ
Botafogo station NERFINISHED ⓘ Central station (Central do Brasil integration area) NERFINISHED ⓘ Copacabana stations NERFINISHED ⓘ Ipanema stations ⓘ |
| numberOfLines | 3 ⓘ |
| numberOfStations | over 40 ⓘ |
| openingDate | 1979 ⓘ |
| operator | MetrôRio NERFINISHED ⓘ |
| owner | State of Rio de Janeiro NERFINISHED ⓘ |
| primaryLanguage | Portuguese ⓘ |
| purpose |
high-capacity urban transport
ⓘ
reduction of road congestion ⓘ |
| regionServed | Rio de Janeiro metropolitan area NERFINISHED ⓘ |
| rollingStockType | electric multiple units ⓘ |
| safetySystem | automatic train protection ⓘ |
| servesArea |
Downtown Rio de Janeiro
NERFINISHED
ⓘ
North Zone of Rio de Janeiro NERFINISHED ⓘ South Zone of Rio de Janeiro NERFINISHED ⓘ West Zone of Rio de Janeiro NERFINISHED ⓘ |
| servesCity | Rio de Janeiro NERFINISHED ⓘ |
| serviceType |
rapid transit
ⓘ
urban rail ⓘ |
| trackGauge | 1,600 mm ⓘ |
| transportMode | rail ⓘ |
| typicalUse |
daily commuting
ⓘ
tourist access to beaches and attractions ⓘ |
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: Rio de Janeiro Metro Description of subject: The Rio de Janeiro Metro is the rapid transit system serving the city of Rio de Janeiro, Brazil, providing high-capacity urban rail transport across key neighborhoods and metropolitan areas.
Referenced by (35)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Metrô Rio
this entity surface form:
Rio de Janeiro Metro system
this entity surface form:
Linha 4 of Rio de Janeiro Metro
this entity surface form:
Metrô Rio
this entity surface form:
Metrô Rio
this entity surface form:
Rio de Janeiro Metro network
this entity surface form:
MetrôRio
this entity surface form:
Rio de Janeiro Metro fare system
this entity surface form:
Rio de Janeiro Metro Line 1
this entity surface form:
Rio de Janeiro Metro Line 2
this entity surface form:
Rio de Janeiro Metro fare system
this entity surface form:
MetrôRio
subject surface form:
North Zone of Rio de Janeiro
this entity surface form:
Rio de Janeiro Metro Line 1
subject surface form:
North Zone of Rio de Janeiro
this entity surface form:
Rio de Janeiro Metro Line 2
this entity surface form:
Rio de Janeiro Metro Line 1
this entity surface form:
Metrô Rio
this entity surface form:
Rio de Janeiro Metro Line 1
subject surface form:
Cinelândia
this entity surface form:
Rio de Janeiro Metro Line 1
subject surface form:
Cinelândia
this entity surface form:
Rio de Janeiro Metro Line 2
this entity surface form:
Rio de Janeiro Metro fare system
this entity surface form:
MetrôRio
this entity surface form:
MetrôRio
this entity surface form:
Rio de Janeiro Metro system