TMB 4000 series
E254935
The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
All labels observed (1)
| Label | Occurrences |
|---|---|
| TMB 4000 series canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2280462 — 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: TMB 4000 series Context triple: [Barcelona Metro, hasRollingStockType, TMB 4000 series]
-
A.
TMB 3000 series
The TMB 3000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
-
B.
TMB 2000 series
The TMB 2000 series is a class of electric multiple unit trains used on the Barcelona Metro, designed for high-capacity urban rapid transit service.
-
C.
TMB
TMB is the commonly used abbreviation for the Technical Management Board, a governing body that oversees and coordinates technical and standardization activities within its organization.
-
D.
Cobas
Cobas is Roche's line of automated clinical laboratory analyzers and diagnostic systems widely used for blood testing and other in vitro diagnostics.
-
E.
Turbostar
Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
- 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: TMB 4000 series Target entity description: The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
-
A.
TMB 3000 series
The TMB 3000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
-
B.
TMB 2000 series
The TMB 2000 series is a class of electric multiple unit trains used on the Barcelona Metro, designed for high-capacity urban rapid transit service.
-
C.
TMB
TMB is the commonly used abbreviation for the Technical Management Board, a governing body that oversees and coordinates technical and standardization activities within its organization.
-
D.
Cobas
Cobas is Roche's line of automated clinical laboratory analyzers and diagnostic systems widely used for blood testing and other in vitro diagnostics.
-
E.
Turbostar
Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
passenger train ⓘ rolling stock series ⓘ |
| category |
Barcelona Metro rolling stock
ⓘ
electric multiple units of Spain ⓘ |
| controlType | multiple‑unit control ⓘ |
| designedFor |
high‑frequency metro service
ⓘ
urban rail transport ⓘ |
| electrificationSystem | DC electrification ⓘ |
| gauge | standard gauge ⓘ |
| hasMultipleUnits | yes ⓘ |
| networkType | rapid transit ⓘ |
| operatesOn | Barcelona Metro ⓘ |
| operator | Transports Metropolitans de Barcelona ⓘ |
| owner | Transports Metropolitans de Barcelona ⓘ |
| powerCollectionMethod | third rail ⓘ |
| primaryUse |
commuter transport
ⓘ
mass transit ⓘ |
| publicTransportSystem | Barcelona Metro ⓘ |
| railwaySystem |
Barcelona urban rail network
ⓘ
linked to:
Barcelona Metro
|
| serviceType | passenger ⓘ |
| tractionType | electric ⓘ |
| usedInCity | Barcelona ⓘ |
| usedInCountry | Spain ⓘ |
| usedOn | underground railway ⓘ |
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: TMB 4000 series Description of subject: The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.