D Line (Denver light rail)
E293434
The D Line is a light rail service in Denver, Colorado, that runs through central and southern parts of the metropolitan area as part of the city’s RTD rail network.
All labels observed (4)
| Label | Occurrences |
|---|---|
| D Line (Denver light rail) canonical | 1 |
| D Line (RTD Denver light rail) | 1 |
| D Line (RTD Denver) | 1 |
| D Line at Union Station (before restructuring) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2550263 — 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 (Denver light rail) Context triple: [Regional Transportation District, operates, D Line (Denver light rail)]
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A.
R Line (Denver light rail)
The R Line is a light rail service in the Denver metropolitan area that runs primarily through Aurora, Colorado, connecting key suburbs, employment centers, and transfer points within the Regional Transportation District network.
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B.
E Line (Denver light rail)
The E Line is a light rail service in the Denver metropolitan area that connects downtown Denver with southern suburbs as part of the region’s RTD rail network.
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C.
A Line (Denver commuter rail)
A Line (Denver commuter rail) is an electric commuter rail service in the Denver metropolitan area that connects downtown Denver’s Union Station with Denver International Airport and several intermediate neighborhoods and suburbs.
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D.
N Line (Denver commuter rail)
The N Line is a commuter rail route in the Denver metropolitan area that provides passenger service between downtown Denver and northern suburbs as part of the region’s FasTracks transit expansion.
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E.
G Line (Denver commuter rail)
The G Line is a commuter rail service in the Denver metropolitan area that connects Union Station in downtown Denver with the western suburbs, including Wheat Ridge and Arvada.
- 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 (Denver light rail) Target entity description: The D Line is a light rail service in Denver, Colorado, that runs through central and southern parts of the metropolitan area as part of the city’s RTD rail network.
-
A.
R Line (Denver light rail)
The R Line is a light rail service in the Denver metropolitan area that runs primarily through Aurora, Colorado, connecting key suburbs, employment centers, and transfer points within the Regional Transportation District network.
-
B.
E Line (Denver light rail)
The E Line is a light rail service in the Denver metropolitan area that connects downtown Denver with southern suburbs as part of the region’s RTD rail network.
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C.
A Line (Denver commuter rail)
A Line (Denver commuter rail) is an electric commuter rail service in the Denver metropolitan area that connects downtown Denver’s Union Station with Denver International Airport and several intermediate neighborhoods and suburbs.
-
D.
N Line (Denver commuter rail)
The N Line is a commuter rail route in the Denver metropolitan area that provides passenger service between downtown Denver and northern suburbs as part of the region’s FasTracks transit expansion.
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E.
G Line (Denver commuter rail)
The G Line is a commuter rail service in the Denver metropolitan area that connects Union Station in downtown Denver with the western suburbs, including Wheat Ridge and Arvada.
- F. None of above. chosen
Statements (46)
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 (Denver light rail) Description of subject: The D Line is a light rail service in Denver, Colorado, that runs through central and southern parts of the metropolitan area as part of the city’s RTD rail network.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.