D Line
E670212
The D Line is a light rail service in the Denver metropolitan area that is part of the Regional Transportation District (RTD) transit system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| D Line canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T7509086 — 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: [Denver RTD, operates, 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.
D Line
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.
-
C.
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.
-
D.
C Line
The C Line is a local New York City Subway service that runs along the Eighth Avenue Line in Manhattan and through parts of Brooklyn and Queens.
-
E.
Y Line
Y Line is the common abbreviation for the Osaka Metro Yotsubashi Line, a rapid transit line serving central Osaka, Japan.
- 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 light rail service in the Denver metropolitan area that is part of the Regional Transportation District (RTD) transit system.
-
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.
D Line
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.
-
C.
C Line
The C Line is a local New York City Subway service that runs along the Eighth Avenue Line in Manhattan and through parts of Brooklyn and Queens.
-
D.
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.
-
E.
Y Line
Y Line is the common abbreviation for the Osaka Metro Yotsubashi Line, a rapid transit line serving central Osaka, Japan.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
light rail service
ⓘ
public transit line ⓘ |
| category |
Light rail in Colorado
ⓘ
Public transportation in Denver ⓘ RTD rail lines ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead catenary ⓘ |
| fareSystem | RTD fare system ⓘ |
| hasServiceType |
commuter transit
ⓘ
urban rail ⓘ |
| isPartOfNetwork |
RTD rail network
ⓘ
linked to:
RTD light rail
|
| locatedIn |
Colorado
ⓘ
Denver metropolitan area ⓘ
linked to:
Denver–Aurora–Lakewood metropolitan area
|
| modeOfTransport | rail ⓘ |
| operator | Regional Transportation District ⓘ |
| owner | Regional Transportation District ⓘ |
| partOf |
RTD light rail system
ⓘ
linked to:
RTD light rail
Regional Transportation District transit system ⓘ
linked to:
Regional Transportation District
|
| publicTransitSystem |
RTD Denver
ⓘ
linked to:
Denver RTD
|
| railwaySignalling | light rail signalling ⓘ |
| regulatoryAuthority | Regional Transportation District ⓘ |
| serves |
City of Denver
ⓘ
linked to:
Denver, Colorado
Downtown Denver ⓘ
linked to:
downtown Denver
|
| serviceArea |
Denver metropolitan area
ⓘ
linked to:
Denver–Aurora–Lakewood metropolitan area
|
| transportationType | light rail ⓘ |
| uses | standard gauge track ⓘ |
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 light rail service in the Denver metropolitan area that is part of the Regional Transportation District (RTD) transit system.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.