Trensurb metropolitan train
E947059
The Trensurb metropolitan train is an urban rail transit system serving the Porto Alegre metropolitan region in Rio Grande do Sul, Brazil.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Trensurb | 2 |
| Trensurb metropolitan train canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11795702 — 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: Trensurb metropolitan train Context triple: [Novo Hamburgo, hasRailConnection, Trensurb metropolitan train]
-
A.
Biotrén commuter rail
Biotrén commuter rail is a suburban passenger train system serving the Greater Concepción metropolitan area in Chile, connecting key urban and outlying communities.
-
B.
SORTA Metro
SORTA Metro is the primary public bus transit system serving Cincinnati and its surrounding Hamilton County region.
-
C.
Ferrocarril Suburbano
Ferrocarril Suburbano is a commuter rail system serving the Mexico City metropolitan area, connecting the city center with several northern suburbs.
-
D.
Tramvia Metropolità
Tramvia Metropolità is a metropolitan tram system serving parts of the Barcelona area, providing urban and suburban light rail transport.
-
E.
Tren Ligero
Tren Ligero is a light rail transit system in Mexico City that complements the metro and bus networks by serving southern areas of the city.
- 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: Trensurb metropolitan train Target entity description: The Trensurb metropolitan train is an urban rail transit system serving the Porto Alegre metropolitan region in Rio Grande do Sul, Brazil.
-
A.
Biotrén commuter rail
Biotrén commuter rail is a suburban passenger train system serving the Greater Concepción metropolitan area in Chile, connecting key urban and outlying communities.
-
B.
SORTA Metro
SORTA Metro is the primary public bus transit system serving Cincinnati and its surrounding Hamilton County region.
-
C.
Ferrocarril Suburbano
Ferrocarril Suburbano is a commuter rail system serving the Mexico City metropolitan area, connecting the city center with several northern suburbs.
-
D.
Tramvia Metropolità
Tramvia Metropolità is a metropolitan tram system serving parts of the Barcelona area, providing urban and suburban light rail transport.
-
E.
Tren Ligero
Tren Ligero is a light rail transit system in Mexico City that complements the metro and bus networks by serving southern areas of the city.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail system
ⓘ
urban rail transit system ⓘ |
| accessibility | step-free access at most stations ⓘ |
| country | Brazil ⓘ |
| depot | Porto Alegre depot ⓘ |
| electrification | 1500 V DC overhead line ⓘ |
| environmentalImpact |
reduces road congestion
ⓘ
reduces urban air pollution ⓘ |
| farePolicy | flat fare per trip ⓘ |
| fareSystem | integrated with metropolitan buses ⓘ |
| hasAbbreviation |
Trensurb
ⓘ
linked to:
Trensurb metropolitan train
|
| hasWebsite | https://www.trensurb.gov.br ⓘ |
| inception | 1985 ⓘ |
| languageOfOfficialWebsite | Portuguese ⓘ |
| locatedIn |
Porto Alegre metropolitan region
ⓘ
linked to:
Metropolitan Region of Porto Alegre
Rio Grande do Sul ⓘ Southern Brazil ⓘ
linked to:
South Region of Brazil
|
| numberOfLines | 1 ⓘ |
| numberOfStations | 22 ⓘ |
| offPeakFrequency | reduced frequency service ⓘ |
| openingDate | 1985-03-02 ⓘ |
| operator |
Trensurb
ⓘ
linked to:
Trensurb metropolitan train
|
| owner |
Brazilian federal government
ⓘ
linked to:
Brazilian government
|
| partOf | public transport network of Porto Alegre ⓘ |
| peakHourFrequency | high frequency service ⓘ |
| primaryUse | daily commuter transport ⓘ |
| publicTransportMode | rail ⓘ |
| railwaySignalling | colour light signals ⓘ |
| regionServed |
Porto Alegre metropolitan area
ⓘ
linked to:
Metropolitan Region of Porto Alegre
|
| rollingStockType | electric multiple units ⓘ |
| safetySystem | automatic train control ⓘ |
| serves |
Canoas
ⓘ
Esteio ⓘ Novo Hamburgo ⓘ Porto Alegre ⓘ Sapucaia do Sul ⓘ São Leopoldo ⓘ |
| serviceType | all-stations stopping service ⓘ |
| systemLength | about 43 km ⓘ |
| terminus |
Estação Mercado
ⓘ
Estação Novo Hamburgo ⓘ
linked to:
Novo Hamburgo
|
| ticketing |
magnetic card
ⓘ
smart card ⓘ |
| trackGauge | 1600 mm ⓘ |
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: Trensurb metropolitan train Description of subject: The Trensurb metropolitan train is an urban rail transit system serving the Porto Alegre metropolitan region in Rio Grande do Sul, Brazil.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Trensurb metropolitan train
linked to: Trensurb metropolitan train