Silver Line
E482380
The Silver Line is a heritage streetcar route within the San Diego Trolley system that operates vintage vehicles primarily for downtown circulator service.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Silver Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4679787 — 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: Silver Line Context triple: [San Diego Trolley, hasLine, Silver Line]
-
A.
Silver Line
The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
-
B.
Silver Line
The Silver Line is a bus rapid transit service in Boston, Massachusetts, operated by the MBTA and serving key corridors including the Seaport District and Logan Airport.
-
C.
Metro Silver Line
The Metro Silver Line is a former branding used for certain Los Angeles County Metropolitan Transportation Authority bus services, particularly those operating as part of the region’s bus rapid transit network.
-
D.
Fairfax Line
The Fairfax Line was a colonial-era boundary line in what is now West Virginia and Virginia, originally surveyed to define the limits of the vast Northern Neck land grant.
-
E.
Washington Metro Silver Line
The Washington Metro Silver Line is a rapid transit line in the Washington, D.C. metropolitan area that extends service to Northern Virginia suburbs including Tysons and Reston.
- 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: Silver Line Target entity description: The Silver Line is a heritage streetcar route within the San Diego Trolley system that operates vintage vehicles primarily for downtown circulator service.
-
A.
Silver Line
The Silver Line is a rapid transit route in the Washington Metro system that serves northern Virginia suburbs, including Tysons and Reston, and connects them to Washington, D.C.
-
B.
Silver Line
The Silver Line is a bus rapid transit service in Boston, Massachusetts, operated by the MBTA and serving key corridors including the Seaport District and Logan Airport.
-
C.
Metro Silver Line
The Metro Silver Line is a former branding used for certain Los Angeles County Metropolitan Transportation Authority bus services, particularly those operating as part of the region’s bus rapid transit network.
-
D.
Fairfax Line
The Fairfax Line was a colonial-era boundary line in what is now West Virginia and Virginia, originally surveyed to define the limits of the vast Northern Neck land grant.
-
E.
Washington Metro Silver Line
The Washington Metro Silver Line is a rapid transit line in the Washington, D.C. metropolitan area that extends service to Northern Virginia suburbs including Tysons and Reston.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
heritage streetcar line
ⓘ
light rail line ⓘ |
| colorDesignation | silver ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification |
600 V DC
ⓘ
overhead line ⓘ |
| farePolicy | public transit fare required ⓘ |
| fareSystem | integrated with San Diego Trolley fares ⓘ |
| hasRouteType | urban rail transit ⓘ |
| heritageAspect | operation of restored historic streetcars ⓘ |
| heritageVehicleType | PCC streetcars ⓘ |
| isPartOfNetwork | MTS Rail network ⓘ |
| locatedIn | San Diego, California NERFINISHED ⓘ |
| operator | San Diego Metropolitan Transit System NERFINISHED ⓘ |
| owner | San Diego Metropolitan Transit System NERFINISHED ⓘ |
| partOf | San Diego Trolley NERFINISHED ⓘ |
| primaryFunction | downtown circulator service ⓘ |
| safetyAuthority | California Public Utilities Commission NERFINISHED ⓘ |
| servesArea | Downtown San Diego NERFINISHED ⓘ |
| servesPurpose |
circulation within downtown core
ⓘ
tourism and recreational travel ⓘ |
| servicePattern | loop route ⓘ |
| serviceType |
heritage transit
ⓘ
tourist-oriented service ⓘ |
| system | San Diego Trolley light rail system NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| transitMode | rail ⓘ |
| usesInfrastructure | existing San Diego Trolley tracks ⓘ |
| usesRollingStockType | vintage streetcars ⓘ |
| vehiclePower | electric ⓘ |
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: Silver Line Description of subject: The Silver Line is a heritage streetcar route within the San Diego Trolley system that operates vintage vehicles primarily for downtown circulator service.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.