MetroLink light rail
E34297
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.
All labels observed (7)
| Label | Occurrences |
|---|---|
| MetroLink | 12 |
| MetroLink light rail canonical | 7 |
| St. Louis MetroLink | 3 |
| MetroLink (St. Louis) | 2 |
| MetroLink via Forest Park–DeBaliviere station | 2 |
| MetroLink (St. Louis) system | 1 |
| MetroLink (Union Station stop) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T90048 — 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 light rail Context triple: [St. Louis, Missouri, United States, servedByTransitSystem, MetroLink light rail]
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
C.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
D.
Metrolink tram network
The Metrolink tram network is Greater Manchester’s light rail system, providing extensive urban and suburban public transport connections across the city region.
-
E.
Huntington Area Rapid Transit
Huntington Area Rapid Transit is the local bus system serving the town of Huntington in Suffolk County, New York.
- 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 light rail Target entity description: 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.
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
C.
VTA light rail
VTA light rail is a light rail public transit system serving Santa Clara County, including cities such as San Jose, operated by the Santa Clara Valley Transportation Authority.
-
D.
Metrolink tram network
The Metrolink tram network is Greater Manchester’s light rail system, providing extensive urban and suburban public transport connections across the city region.
-
E.
Huntington Area Rapid Transit
Huntington Area Rapid Transit is the local bus system serving the town of Huntington in Suffolk County, New York.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
light rail transit system
ⓘ
passenger rail system ⓘ public transportation system ⓘ |
| connects |
Belleville, Illinois
ⓘ
Clayton, Missouri ⓘ St. Louis, Missouri, United States ⓘ
surface form:
Downtown St. Louis
East St. Louis, Illinois ⓘ St. Louis Lambert International Airport ⓘ
surface form:
Lambert–St. Louis International Airport
Scott Air Force Base ⓘ University City, Missouri ⓘ |
| hasAbbreviation |
MetroLink light rail
self-linksurface differs
ⓘ
surface form:
MetroLink
|
| hasAccessibility | wheelchair accessible ⓘ |
| hasCategory |
Light rail in the United States
ⓘ
Rail transport in Illinois ⓘ Rail transport in Missouri ⓘ |
| hasConnection |
Metro Transit (St. Louis)
ⓘ
surface form:
MetroBus (St. Louis)
regional bus services in Illinois ⓘ |
| hasFareSystem | proof-of-payment ⓘ |
| hasLine |
Blue Line
ⓘ
Red Line ⓘ |
| hasLocale |
Midwestern United States
ⓘ
United States of America ⓘ
surface form:
United States
|
| hasNumberOfLines | 2 ⓘ |
| hasOperator | Metro Transit (St. Louis) ⓘ |
| hasOwner | Bi-State Development Agency ⓘ |
| hasPowerSupply | electric power ⓘ |
| hasPrimaryMode | rail ⓘ |
| hasPrimaryPurpose |
airport access
ⓘ
public transit for commuters ⓘ |
| hasRegionServed |
St. Louis metropolitan area
ⓘ
surface form:
bi-state St. Louis metropolitan area
|
| hasRightOfWay |
at-grade
ⓘ
elevated ⓘ subsurface ⓘ |
| hasServiceType |
regional rail
ⓘ
urban rail transit ⓘ |
| hasSystemLength | approximately 46 miles ⓘ |
| hasTicketing | ticket vending machines at stations ⓘ |
| hasTrackGauge | standard gauge ⓘ |
| hasTransitType | light rail ⓘ |
| isPartOf |
Metro Transit (St. Louis)
ⓘ
surface form:
Metro Transit (St. Louis) network
|
| operatedBy |
Bi-State Development Agency
ⓘ
Metro Transit (St. Louis) ⓘ |
| operatesIn |
St. Clair County, Illinois
ⓘ
St. Louis, Missouri, United States ⓘ
surface form:
St. Louis, Missouri
|
| serves |
St. Louis metropolitan area
ⓘ
surface form:
Greater St. Louis area
Illinois ⓘ Missouri ⓘ |
| usesElectrification | overhead catenary ⓘ |
| usesRollingStock | light rail vehicles ⓘ |
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 light rail Description of subject: 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.
Referenced by (28)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
MetroLink via Forest Park–DeBaliviere station
this entity surface form:
MetroLink (St. Louis)
this entity surface form:
MetroLink via Forest Park–DeBaliviere station
this entity surface form:
MetroLink
subject surface form:
Union Station (St. Louis)
this entity surface form:
MetroLink (Union Station stop)
this entity surface form:
St. Louis MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink
subject surface form:
Red Line (St. Louis MetroLink)
this entity surface form:
MetroLink
subject surface form:
Red Line (St. Louis MetroLink)
this entity surface form:
St. Louis MetroLink
subject surface form:
Blue Line (St. Louis MetroLink)
this entity surface form:
MetroLink (St. Louis) system
subject surface form:
Blue Line (St. Louis MetroLink)
this entity surface form:
MetroLink (St. Louis)
this entity surface form:
MetroLink
this entity surface form:
St. Louis MetroLink
this entity surface form:
MetroLink
this entity surface form:
MetroLink