D Line
E561876
The D Line is a New York City Subway service that runs through multiple boroughs, including Brooklyn, providing rapid transit along a key north–south corridor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| D Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6017770 — 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: D Line Context triple: [Brooklyn, isServedBySubwayLine, D Line]
-
A.
D Line
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, serving key neighborhoods between downtown Los Angeles and the city’s west side.
-
B.
C Line
The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
-
C.
Y Line
Y Line is the common abbreviation for the Osaka Metro Yotsubashi Line, a rapid transit line serving central Osaka, Japan.
-
D.
H line
The H line is a route within Copenhagen’s S-train suburban rail network, serving as one of the system’s regular commuter lines.
-
E.
EverLine
EverLine is an automated light rail transit line serving the city of Yongin in the Seoul Capital Area, connecting local districts to the broader Seoul Metropolitan Subway 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: D Line Target entity description: The D Line is a New York City Subway service that runs through multiple boroughs, including Brooklyn, providing rapid transit along a key north–south corridor.
-
A.
D Line
The D Line is a heavy-rail subway route in the Los Angeles Metro system that runs primarily beneath Wilshire Boulevard, serving key neighborhoods between downtown Los Angeles and the city’s west side.
-
B.
C Line
The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
-
C.
Y Line
Y Line is the common abbreviation for the Osaka Metro Yotsubashi Line, a rapid transit line serving central Osaka, Japan.
-
D.
H line
The H line is a route within Copenhagen’s S-train suburban rail network, serving as one of the system’s regular commuter lines.
-
E.
EverLine
EverLine is an automated light rail transit line serving the city of Yongin in the Seoul Capital Area, connecting local districts to the broader Seoul Metropolitan Subway network.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway service
ⓘ
rapid transit service ⓘ |
| boroughServed |
Bronx
NERFINISHED
ⓘ
Brooklyn ⓘ Manhattan ⓘ |
| colorHex | #FF6319 ⓘ |
| colorOnMap | bright orange ⓘ |
| connectsBoroughs |
Bronx and Brooklyn
NERFINISHED
ⓘ
Bronx and Manhattan ⓘ Manhattan and Brooklyn NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| division | IND Division ⓘ |
| electrification | 600 V DC third rail ⓘ |
| fareMedium |
MetroCard
NERFINISHED
ⓘ
OMNY NERFINISHED ⓘ |
| farePolicy | flat fare within system ⓘ |
| fareSystem | MTA New York City Subway fare system ⓘ |
| hasRouteDesignation | D train NERFINISHED ⓘ |
| hasServiceType |
express service
ⓘ
local service ⓘ |
| historicalOrigin | IND Sixth Avenue Line opening ⓘ |
| infrastructureOwner | City of New York NERFINISHED ⓘ |
| locale | New York City NERFINISHED ⓘ |
| networkRole | Sixth Avenue express service ⓘ |
| operator | New York City Transit Authority NERFINISHED ⓘ |
| parentOrganization | Metropolitan Transportation Authority NERFINISHED ⓘ |
| partOfCorridor | IND Sixth Avenue trunk line NERFINISHED ⓘ |
| primaryFunction | rapid transit ⓘ |
| rollingStockType | B Division subway cars ⓘ |
| routeOrientation | north–south corridor ⓘ |
| safetySystem | wayside signals ⓘ |
| serviceBegan | 1940 ⓘ |
| serviceClass | lettered (B Division) service ⓘ |
| serviceFrequency | all times, including late nights ⓘ |
| servicePattern |
24-hour service
ⓘ
express in Manhattan ⓘ express in the Bronx ⓘ local in Brooklyn ⓘ |
| system | New York City Subway ⓘ |
| trackGauge | standard gauge ⓘ |
| trunkLineInBronx | IND Concourse Line NERFINISHED ⓘ |
| trunkLineInBrooklyn |
BMT Fourth Avenue Line
NERFINISHED
ⓘ
BMT West End Line NERFINISHED ⓘ |
| trunkLineInManhattan | IND Sixth Avenue Line NERFINISHED ⓘ |
| usesLetter | D NERFINISHED ⓘ |
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: D Line Description of subject: The D Line is a New York City Subway service that runs through multiple boroughs, including Brooklyn, providing rapid transit along a key north–south corridor.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Brooklyn