University of Colorado A Line
E937379
The University of Colorado A Line is a commuter rail service in the Denver metropolitan area that connects downtown Denver’s Union Station with Denver International Airport.
All labels observed (1)
| Label | Occurrences |
|---|---|
| University of Colorado A Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11637965 — 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: University of Colorado A Line Context triple: [A Line (Denver commuter rail), alsoKnownAs, University of Colorado A Line]
-
A.
University of Denver
The University of Denver is a private research university in Denver, Colorado, known for its strong programs in international studies, business, and law.
-
B.
University of Colorado Boulder
The University of Colorado Boulder is a major public research university in Boulder, Colorado, known for its strong programs in engineering, environmental sciences, and astrophysics, as well as its scenic campus at the foothills of the Rocky Mountains.
-
C.
University of Colorado Colorado Springs
The University of Colorado Colorado Springs is a public research university in Colorado known for its programs in engineering, business, and the liberal arts as part of the University of Colorado system.
-
D.
Metropolitan State University of Denver
Metropolitan State University of Denver is a public urban university located in downtown Denver, Colorado, known for its diverse student body and career-focused undergraduate and graduate programs.
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E.
Arapahoe Campus
Arapahoe Campus is one of Naropa University’s instructional sites in Boulder, Colorado, housing classrooms and facilities for its contemplative education programs.
- 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: University of Colorado A Line Target entity description: The University of Colorado A Line is a commuter rail service in the Denver metropolitan area that connects downtown Denver’s Union Station with Denver International Airport.
-
A.
University of Denver
The University of Denver is a private research university in Denver, Colorado, known for its strong programs in international studies, business, and law.
-
B.
University of Colorado Boulder
The University of Colorado Boulder is a major public research university in Boulder, Colorado, known for its strong programs in engineering, environmental sciences, and astrophysics, as well as its scenic campus at the foothills of the Rocky Mountains.
-
C.
University of Colorado Colorado Springs
The University of Colorado Colorado Springs is a public research university in Colorado known for its programs in engineering, business, and the liberal arts as part of the University of Colorado system.
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D.
Metropolitan State University of Denver
Metropolitan State University of Denver is a public urban university located in downtown Denver, Colorado, known for its diverse student body and career-focused undergraduate and graduate programs.
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E.
Arapahoe Campus
Arapahoe Campus is one of Naropa University’s instructional sites in Boulder, Colorado, housing classrooms and facilities for its contemplative education programs.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
airport rail link
ⓘ
commuter rail line ⓘ passenger rail service ⓘ |
| alsoKnownAs | A Line NERFINISHED ⓘ |
| brandName | University of Colorado A Line NERFINISHED ⓘ |
| category | Rail transport in Colorado ⓘ |
| cityServed |
Aurora
NERFINISHED
ⓘ
Denver NERFINISHED ⓘ |
| connects |
Denver International Airport
NERFINISHED
ⓘ
Denver Union Station NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | 25 kV AC overhead catenary ⓘ |
| endStation | Denver International Airport Station NERFINISHED ⓘ |
| fareSystem | RTD fare system ⓘ |
| gauge | standard gauge ⓘ |
| hasMode | rail ⓘ |
| hasStation |
38th & Blake Station
NERFINISHED
ⓘ
40th & Colorado Station NERFINISHED ⓘ 61st & Peña Station ⓘ Central Park Station NERFINISHED ⓘ Denver Airport Station NERFINISHED ⓘ Denver Union Station NERFINISHED ⓘ Peoria Station NERFINISHED ⓘ |
| isPartOfNetwork | RTD rail network NERFINISHED ⓘ |
| lineLength |
approximately 23 miles
ⓘ
approximately 37 kilometers ⓘ |
| locatedIn | Denver metropolitan area NERFINISHED ⓘ |
| namingRightsHolder | University of Colorado NERFINISHED ⓘ |
| openingDate | 2016-04-22 ⓘ |
| operator |
RTD
NERFINISHED
ⓘ
Regional Transportation District NERFINISHED ⓘ |
| owner | Regional Transportation District NERFINISHED ⓘ |
| partOf |
FasTracks program
NERFINISHED
ⓘ
RTD commuter rail system NERFINISHED ⓘ |
| primaryFunction | connect downtown Denver with Denver International Airport ⓘ |
| regionServed |
Aurora, Colorado
NERFINISHED
ⓘ
Denver NERFINISHED ⓘ |
| rollingStock | electric multiple units ⓘ |
| serves | Denver metropolitan area NERFINISHED ⓘ |
| serviceType |
airport express rail
ⓘ
commuter rail ⓘ |
| sponsor | University of Colorado NERFINISHED ⓘ |
| startStation | Denver Union Station NERFINISHED ⓘ |
| state | Colorado ⓘ |
| terminus |
Denver International Airport
NERFINISHED
ⓘ
Denver Union Station NERFINISHED ⓘ |
| trackConfiguration | double track ⓘ |
| uses | electric multiple units ⓘ |
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: University of Colorado A Line Description of subject: The University of Colorado A Line is a commuter rail service in the Denver metropolitan area that connects downtown Denver’s Union Station with Denver International Airport.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.