C Line
E670213
The C Line was a light rail service in Denver, Colorado, that operated as part of the Regional Transportation District’s rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| C Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7509087 — 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: C Line Context triple: [Denver RTD, operates, C Line]
-
A.
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.
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B.
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.
-
C.
C line
The C line is a route within Copenhagen’s S-train suburban rail network, providing frequent commuter service between central Copenhagen and its outlying districts.
-
D.
Line C
Line C is one of the routes of the Strasbourg tramway network, providing urban light-rail transit service within the city and its suburbs.
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E.
Line C
Line C is one of the main lines of the Prague Metro, running in a north–south direction and serving as a key backbone of the city’s rapid transit 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: C Line Target entity description: The C Line was a light rail service in Denver, Colorado, that operated as part of the Regional Transportation District’s rail network.
-
A.
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.
-
B.
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.
-
C.
C line
The C line is a route within Copenhagen’s S-train suburban rail network, providing frequent commuter service between central Copenhagen and its outlying districts.
-
D.
Line C
Line C is one of the main lines of the Buenos Aires Underground, running north–south through central Buenos Aires and connecting key transport hubs in the city.
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E.
Line C
Line C is one of the main lines of the Prague Metro, running in a north–south direction and serving as a key backbone of the city’s rapid transit network.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
former railway line
ⓘ
light rail service ⓘ public transit line ⓘ |
| connectsWith |
RTD bus network
ⓘ
other RTD light rail lines ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| fareSystem | RTD fare system ⓘ |
| locatedIn |
Colorado
ⓘ
Denver NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| openingDate | 2000 ⓘ |
| operator |
RTD
NERFINISHED
ⓘ
Regional Transportation District NERFINISHED ⓘ |
| ownedBy | Regional Transportation District NERFINISHED ⓘ |
| partOf |
Denver light rail system
NERFINISHED
ⓘ
RTD Rail NERFINISHED ⓘ |
| primaryFunction |
suburban commuter connection
ⓘ
urban rail transit ⓘ |
| railGauge | standard gauge ⓘ |
| serves | Metropolitan Denver NERFINISHED ⓘ |
| servicePattern |
peak-oriented service
ⓘ
weekday service ⓘ |
| serviceType | commuter rail transit ⓘ |
| sharesTracksWith |
D Line
NERFINISHED
ⓘ
E Line NERFINISHED ⓘ |
| status | discontinued ⓘ |
| terminus |
Littleton–Mineral station
NERFINISHED
ⓘ
Union Station NERFINISHED ⓘ |
| trackConfiguration | double track on most of route ⓘ |
| transportationMode | light rail ⓘ |
| usesInfrastructure | Southwest Corridor 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: C Line Description of subject: The C Line was a light rail service in Denver, Colorado, that operated as part of the Regional Transportation District’s rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.