maintenance directorate of Mexico City Metro
E443809
The maintenance directorate of the Mexico City Metro is the division responsible for overseeing the inspection, repair, and upkeep of the metro system’s trains, tracks, and related infrastructure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| maintenance directorate of Mexico City Metro canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4481717 — 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: maintenance directorate of Mexico City Metro Context triple: [Sistema de Transporte Colectivo, hasPart, maintenance directorate of Mexico City Metro]
-
A.
public transportation network of Mexico City
The public transportation network of Mexico City is an extensive, multimodal urban transit system that includes metro, buses, trolleybuses, bus rapid transit, and suburban rail serving one of the world’s largest metropolitan areas.
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B.
Servicio de Transportes Eléctricos de la Ciudad de México
Servicio de Transportes Eléctricos de la Ciudad de México is the public agency responsible for operating and managing electric urban transport services, such as trolleybuses and light rail, in Mexico City.
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C.
Suburban Railway of the Valley of Mexico
The Suburban Railway of the Valley of Mexico is a commuter rail system serving the Mexico City metropolitan area, connecting the capital with its northern suburbs to ease congestion and provide rapid transit for daily commuters.
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D.
Line 12 of the Mexico City Metro
Line 12 of the Mexico City Metro is a major east–west rapid transit line in Mexico City that connects the southeastern boroughs with the central and western parts of the city.
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E.
Mexico City Metro Line 3
Mexico City Metro Line 3 is a major north–south rapid transit line in Mexico City’s metro system, connecting key residential and commercial areas across 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: maintenance directorate of Mexico City Metro Target entity description: The maintenance directorate of the Mexico City Metro is the division responsible for overseeing the inspection, repair, and upkeep of the metro system’s trains, tracks, and related infrastructure.
-
A.
public transportation network of Mexico City
The public transportation network of Mexico City is an extensive, multimodal urban transit system that includes metro, buses, trolleybuses, bus rapid transit, and suburban rail serving one of the world’s largest metropolitan areas.
-
B.
Servicio de Transportes Eléctricos de la Ciudad de México
Servicio de Transportes Eléctricos de la Ciudad de México is the public agency responsible for operating and managing electric urban transport services, such as trolleybuses and light rail, in Mexico City.
-
C.
Suburban Railway of the Valley of Mexico
The Suburban Railway of the Valley of Mexico is a commuter rail system serving the Mexico City metropolitan area, connecting the capital with its northern suburbs to ease congestion and provide rapid transit for daily commuters.
-
D.
Line 12 of the Mexico City Metro
Line 12 of the Mexico City Metro is a major east–west rapid transit line in Mexico City that connects the southeastern boroughs with the central and western parts of the city.
-
E.
Mexico City Metro Line 3
Mexico City Metro Line 3 is a major north–south rapid transit line in Mexico City’s metro system, connecting key residential and commercial areas across the city.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
organizational unit
ⓘ
public transport maintenance division ⓘ |
| collaboratesWith |
operations directorate of Mexico City Metro
ⓘ
safety and security units of Mexico City Metro ⓘ |
| country | Mexico ⓘ |
| employs |
maintenance engineers
ⓘ
specialized maintenance staff ⓘ technicians ⓘ |
| goal |
ensure continuous service of the Mexico City Metro
ⓘ
ensure reliable operation of the Mexico City Metro ⓘ ensure safe operation of the Mexico City Metro ⓘ |
| hasJurisdictionOver |
Mexico City Metro infrastructure
ⓘ
Mexico City Metro rolling stock ⓘ |
| locatedIn | Mexico City ⓘ |
| operatesIn | Mexico City ⓘ |
| oversees |
maintenance workshops of Mexico City Metro
ⓘ
rolling stock maintenance depots ⓘ track maintenance crews ⓘ |
| parentOrganization |
Sistema de Transporte Colectivo (STC) Metro
ⓘ
linked to:
Sistema de Transporte Colectivo Metro
|
| partOf | Sistema de Transporte Colectivo Metro ⓘ |
| responsibleFor |
availability of metro rolling stock
ⓘ
corrective maintenance of metro trains ⓘ implementation of maintenance programs ⓘ infrastructure inspections ⓘ inspection of metro trains ⓘ maintenance of depots and workshops ⓘ maintenance of metro tracks ⓘ maintenance of power supply systems ⓘ maintenance of rolling stock ⓘ maintenance of signaling systems ⓘ maintenance of station technical equipment ⓘ preventive maintenance of metro trains ⓘ reliability of metro rolling stock ⓘ repair of metro trains ⓘ safety-related maintenance tasks ⓘ track inspections ⓘ upkeep of electrical infrastructure ⓘ upkeep of signaling infrastructure ⓘ upkeep of track infrastructure ⓘ |
| sector |
public transportation
ⓘ
urban rail transport ⓘ |
| typeOfMaintenance |
corrective maintenance
ⓘ
predictive maintenance ⓘ preventive maintenance ⓘ |
| usesLanguage | Spanish ⓘ |
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: maintenance directorate of Mexico City Metro Description of subject: The maintenance directorate of the Mexico City Metro is the division responsible for overseeing the inspection, repair, and upkeep of the metro system’s trains, tracks, and related infrastructure.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.