B line
E1029636
The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| B line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13233486 — 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: B line Context triple: [Los Angeles Railway, operatedLines, B line]
-
A.
B line
The B line is a route within the S-train urban rail network, serving as one of its designated passenger service lines.
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B.
B line
The B line is a New York City Subway service that runs on the IND Sixth Avenue Line, providing weekday local and express service between the Bronx and Brooklyn via Manhattan.
-
C.
Line B
Line B is one of the main lines of the Prague Metro system, running east–west across the city and serving numerous central and residential districts.
-
D.
Line B
Line B is one of the main routes of the Orléans tramway system in France, providing urban light rail service across key districts of the city.
-
E.
Line B
Line B is one of the main tram routes in the Reims tramway network in Reims, France, providing urban public transport across key 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: B line Target entity description: The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
-
A.
B line
The B line is a route within the S-train urban rail network, serving as one of its designated passenger service lines.
-
B.
B line
The B line is a New York City Subway service that runs on the IND Sixth Avenue Line, providing weekday local and express service between the Bronx and Brooklyn via Manhattan.
-
C.
Line B
Line B is one of the main tram routes in the Reims tramway network in Reims, France, providing urban public transport across key areas of the city.
-
D.
Line B
Line B is one of the main lines of the Prague Metro system, running east–west across the city and serving numerous central and residential districts.
-
E.
Line B
Line B is one of the main routes of the Orléans tramway system in France, providing urban light rail service across key districts of the city.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
public transit route
ⓘ
streetcar line ⓘ |
| city | Los Angeles ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead line ⓘ |
| fareMedium |
paper tickets
ⓘ
tokens ⓘ |
| fareSystem | Los Angeles Railway fare system ⓘ |
| heritage | part of historic Los Angeles streetcar system ⓘ |
| historicalStatus | defunct transit line ⓘ |
| historicalTransportSystem |
Los Angeles streetcar network
ⓘ
linked to:
Los Angeles Transit Lines
|
| locatedInTimePeriod | streetcar era in Los Angeles ⓘ |
| modeOfTransport | streetcar ⓘ |
| network |
Los Angeles Railway yellow car system
ⓘ
linked to:
Los Angeles Railway
|
| operatedBy |
Los Angeles Railway company
ⓘ
linked to:
Los Angeles Railway
|
| operatedDuring |
early 20th century
ⓘ
mid-20th century ⓘ |
| operatedIn |
California
ⓘ
linked to:
California (state)
Los Angeles ⓘ United States ⓘ
linked to:
United States of America
|
| operationalEnvironment | mixed traffic streets ⓘ |
| ownership | privately operated under franchise ⓘ |
| partOf | Los Angeles Railway ⓘ |
| primaryFunction | urban passenger transport ⓘ |
| propulsion | electric ⓘ |
| region | Southern California ⓘ |
| served | local passengers ⓘ |
| servedAreaType |
central Los Angeles
ⓘ
inner-city neighborhoods ⓘ |
| serviceType | local service ⓘ |
| successorSystem | bus transit in Los Angeles ⓘ |
| systemType | urban rail transit ⓘ |
| transitModeFamily | light rail precursor ⓘ |
| transportCategory | surface rail transit ⓘ |
| usedTrackGauge | 3 ft 6 in gauge ⓘ |
| vehicleType | single-unit streetcars ⓘ |
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: B line Description of subject: The B line was a streetcar route in the historic Los Angeles Railway system that served local passengers in Los Angeles during the early to mid-20th century.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.