Muni Metro Breda LRV
E454386
The Muni Metro Breda LRV is a type of light rail vehicle used by San Francisco’s Muni Metro system for its modern streetcar and light rail services.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Muni light rail vehicles | 2 |
| Muni Metro Breda LRV canonical | 1 |
| Muni Metro light rail vehicles | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4569253 — 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: Muni Metro Breda LRV Context triple: [Muni Metro T Third Street line, rollingStock, Muni Metro Breda LRV]
-
A.
MBTA Type 9 Light Rail Vehicle
The MBTA Type 9 Light Rail Vehicle is a modern, low-floor streetcar used on Boston’s Green Line that features improved accessibility, passenger comfort, and energy efficiency compared to earlier MBTA light rail fleets.
-
B.
MBTA Type 7 Light Rail Vehicle
The MBTA Type 7 Light Rail Vehicle is a high-floor, articulated streetcar used on Boston’s Green Line, known for its distinctive design and role as one of the system’s primary light rail fleets.
-
C.
MBTA Type 8 Light Rail Vehicle
The MBTA Type 8 Light Rail Vehicle is a low-floor, articulated streetcar used on Boston’s Green Line, designed to improve accessibility and passenger capacity on the system’s light rail routes.
-
D.
Siemens U2 LRVs
Siemens U2 LRVs are a series of high-floor light rail vehicles built by Siemens for urban transit systems, widely used in early North American and European light rail networks.
-
E.
Bombardier Flexity Freedom LRVs
Bombardier Flexity Freedom LRVs are a class of modern low-floor light rail vehicles designed by Bombardier for urban transit systems in North America.
- 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: Muni Metro Breda LRV Target entity description: The Muni Metro Breda LRV is a type of light rail vehicle used by San Francisco’s Muni Metro system for its modern streetcar and light rail services.
-
A.
MBTA Type 9 Light Rail Vehicle
The MBTA Type 9 Light Rail Vehicle is a modern, low-floor streetcar used on Boston’s Green Line that features improved accessibility, passenger comfort, and energy efficiency compared to earlier MBTA light rail fleets.
-
B.
MBTA Type 7 Light Rail Vehicle
The MBTA Type 7 Light Rail Vehicle is a high-floor, articulated streetcar used on Boston’s Green Line, known for its distinctive design and role as one of the system’s primary light rail fleets.
-
C.
MBTA Type 8 Light Rail Vehicle
The MBTA Type 8 Light Rail Vehicle is a low-floor, articulated streetcar used on Boston’s Green Line, designed to improve accessibility and passenger capacity on the system’s light rail routes.
-
D.
Siemens U2 LRVs
Siemens U2 LRVs are a series of high-floor light rail vehicles built by Siemens for urban transit systems, widely used in early North American and European light rail networks.
-
E.
Bombardier Flexity Freedom LRVs
Bombardier Flexity Freedom LRVs are a class of modern low-floor light rail vehicles designed by Bombardier for urban transit systems in North America.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
articulated light rail vehicle
ⓘ
light rail vehicle ⓘ |
| cityOfOperation | San Francisco NERFINISHED ⓘ |
| countryOfOperation |
United States of America
ⓘ
surface form:
United States
|
| deployedOn |
Muni Metro subway
NERFINISHED
ⓘ
Muni Metro surface lines ⓘ |
| designedFor |
high-platform boarding
ⓘ
street-level operation ⓘ |
| doorConfiguration | multiple side doors ⓘ |
| manufacturer | Breda Costruzioni Ferroviarie NERFINISHED ⓘ |
| manufacturerCountry | Italy NERFINISHED ⓘ |
| operator |
Muni Metro
NERFINISHED
ⓘ
San Francisco Municipal Railway NERFINISHED ⓘ |
| partOf | San Francisco public transportation fleet ⓘ |
| powerCollectionMethod | overhead line ⓘ |
| propulsionType | electric ⓘ |
| publicTransitSystem | San Francisco Muni NERFINISHED ⓘ |
| railwaySystem | Muni Metro system NERFINISHED ⓘ |
| serviceType |
light rail
ⓘ
streetcar ⓘ |
| trackGauge | standard gauge ⓘ |
| usedBy | San Francisco Bay Area passengers ⓘ |
| usedFor |
modern streetcar service
ⓘ
urban light rail service ⓘ |
| vehicleType | bi-directional tram ⓘ |
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: Muni Metro Breda LRV Description of subject: The Muni Metro Breda LRV is a type of light rail vehicle used by San Francisco’s Muni Metro system for its modern streetcar and light rail services.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Muni Metro light rail vehicles
this entity surface form:
Muni light rail vehicles
this entity surface form:
Muni light rail vehicles