MetroLink Red Line
E874796
The MetroLink Red Line is a primary light rail route in the St. Louis MetroLink system, connecting key destinations across the St. Louis metropolitan area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MetroLink Red Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10567614 — 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: MetroLink Red Line Context triple: [Civic Center station, isMajorStopFor, MetroLink Red Line]
-
A.
Metro Red Line
The Metro Red Line was the original heavy-rail subway corridor in Los Angeles that later became the basis for the current D Line service.
-
B.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
-
C.
METRORail Red Line
The METRORail Red Line is a light rail line in Houston, Texas, running through key central areas including downtown and the Museum District.
-
D.
RTA Red Line
The RTA Red Line is a heavy rail rapid transit route in Cleveland, Ohio, running between Cleveland Hopkins International Airport and the Windermere station in East Cleveland.
-
E.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
- 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: MetroLink Red Line Target entity description: The MetroLink Red Line is a primary light rail route in the St. Louis MetroLink system, connecting key destinations across the St. Louis metropolitan area.
-
A.
Metro Red Line
The Metro Red Line was the original heavy-rail subway corridor in Los Angeles that later became the basis for the current D Line service.
-
B.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
-
C.
METRORail Red Line
The METRORail Red Line is a light rail line in Houston, Texas, running through key central areas including downtown and the Museum District.
-
D.
RTA Red Line
The RTA Red Line is a heavy rail rapid transit route in Cleveland, Ohio, running between Cleveland Hopkins International Airport and the Windermere station in East Cleveland.
-
E.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line
ⓘ
public transit route ⓘ |
| accessibility | ADA-compliant stations ⓘ |
| category |
Light rail in Illinois
ⓘ
Light rail in Missouri ⓘ MetroLink lines NERFINISHED ⓘ |
| color | red ⓘ |
| connects |
Central West End
NERFINISHED
ⓘ
Downtown St. Louis NERFINISHED ⓘ East St. Louis NERFINISHED ⓘ Forest Park NERFINISHED ⓘ Lambert–St. Louis International Airport NERFINISHED ⓘ Scott Air Force Base vicinity ⓘ University of Missouri–St. Louis NERFINISHED ⓘ |
| connectsKeyDestinations |
airports
ⓘ
downtown employment centers ⓘ medical centers ⓘ universities ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| electrificationVoltage | 600–750 V DC ⓘ |
| fareIntegration | MetroBus (St. Louis) NERFINISHED ⓘ |
| fareSystem | proof-of-payment ⓘ |
| gauge | standard gauge ⓘ |
| lineNumber | Red Line NERFINISHED ⓘ |
| locatedIn |
Illinois
ⓘ
Missouri ⓘ St. Louis metropolitan area NERFINISHED ⓘ |
| mode | rail ⓘ |
| openedAsPartOf | original MetroLink alignment ⓘ |
| operator | Metro Transit (St. Louis) NERFINISHED ⓘ |
| owner | Bi-State Development Agency NERFINISHED ⓘ |
| partOf |
MetroLink
NERFINISHED
ⓘ
St. Louis MetroLink system NERFINISHED ⓘ |
| region | Greater St. Louis NERFINISHED ⓘ |
| safetyFeatures |
level boarding
ⓘ
platform edge warnings ⓘ |
| serves |
City of St. Louis
NERFINISHED
ⓘ
St. Clair County, Illinois NERFINISHED ⓘ St. Louis County NERFINISHED ⓘ |
| sharesTracksWith | MetroLink Blue Line NERFINISHED ⓘ |
| systemOperator | Bi-State Development Agency NERFINISHED ⓘ |
| ticketing | vending machines at stations ⓘ |
| transitType | light rail ⓘ |
| usesRollingStock |
Siemens SD-400
NERFINISHED
ⓘ
Siemens SD-460 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: MetroLink Red Line Description of subject: The MetroLink Red Line is a primary light rail route in the St. Louis MetroLink system, connecting key destinations across the St. Louis metropolitan area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.