CN Joliet Subdivision
E494961
CN Joliet Subdivision is a Canadian National Railway freight rail line in the Joliet, Illinois area that also carries Metra’s Heritage Corridor commuter trains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CN Joliet Subdivision canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5096059 — 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: CN Joliet Subdivision Context triple: [Heritage Corridor line, usesRailroadSubdivision, CN Joliet Subdivision]
-
A.
Heritage Corridor (via Joliet)
Heritage Corridor (via Joliet) is a Metra commuter rail line in the Chicago area that runs between Chicago Union Station and Joliet, primarily following the former Gulf, Mobile and Ohio Railroad route.
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B.
Northeastern Illinois
Northeastern Illinois is a metropolitan region of Illinois that includes the Chicago area and its surrounding counties, serving as a major hub for transportation, commerce, and culture in the Midwest.
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C.
Fox–Sauk–Kickapoo branch
The Fox–Sauk–Kickapoo branch is a subgroup of the Algonquian language family that includes the closely related Fox, Sauk, and Kickapoo languages traditionally spoken in the Great Lakes and central United States region.
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D.
Joliet, Illinois
Joliet, Illinois is a mid-sized city southwest of Chicago known for its historic prison, riverfront, and role as a regional industrial and transportation hub.
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E.
Joliet Station
Joliet Station is a major commuter rail hub in Joliet, Illinois, serving as a key terminus and transfer point for multiple Chicago-area rail lines.
- 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: CN Joliet Subdivision Target entity description: CN Joliet Subdivision is a Canadian National Railway freight rail line in the Joliet, Illinois area that also carries Metra’s Heritage Corridor commuter trains.
-
A.
Heritage Corridor (via Joliet)
Heritage Corridor (via Joliet) is a Metra commuter rail line in the Chicago area that runs between Chicago Union Station and Joliet, primarily following the former Gulf, Mobile and Ohio Railroad route.
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B.
Northeastern Illinois
Northeastern Illinois is a metropolitan region of Illinois that includes the Chicago area and its surrounding counties, serving as a major hub for transportation, commerce, and culture in the Midwest.
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C.
Fox–Sauk–Kickapoo branch
The Fox–Sauk–Kickapoo branch is a subgroup of the Algonquian language family that includes the closely related Fox, Sauk, and Kickapoo languages traditionally spoken in the Great Lakes and central United States region.
-
D.
Joliet, Illinois
Joliet, Illinois is a mid-sized city southwest of Chicago known for its historic prison, riverfront, and role as a regional industrial and transportation hub.
-
E.
Joliet Station
Joliet Station is a major commuter rail hub in Joliet, Illinois, serving as a key terminus and transfer point for multiple Chicago-area rail lines.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail line
ⓘ
railway line ⓘ |
| alsoUsedFor | commuter rail service ⓘ |
| carries | Metra Heritage Corridor commuter trains ⓘ |
| connectsWith | Metra Heritage Corridor NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasServiceType |
commuter rail
ⓘ
freight ⓘ |
| locatedIn |
Illinois
ⓘ
Joliet, Illinois NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
Will County, Illinois NERFINISHED ⓘ |
| near | city of Joliet NERFINISHED ⓘ |
| operator | Canadian National Railway NERFINISHED ⓘ |
| partOf | CN Chicago-area rail network NERFINISHED ⓘ |
| passesThrough | Joliet metropolitan area NERFINISHED ⓘ |
| primaryUse | freight transportation ⓘ |
| railGauge | standard gauge ⓘ |
| railwaySystem | Canadian National Railway network NERFINISHED ⓘ |
| regionServed | Chicago metropolitan area NERFINISHED ⓘ |
| trackOwner | Canadian National Railway NERFINISHED ⓘ |
| usedBy | Metra NERFINISHED ⓘ |
| usedFor |
movement of freight trains
ⓘ
operation of Metra commuter trains ⓘ |
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: CN Joliet Subdivision Description of subject: CN Joliet Subdivision is a Canadian National Railway freight rail line in the Joliet, Illinois area that also carries Metra’s Heritage Corridor commuter trains.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.