Chicago–South Bend corridor
E941604
The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Chicago–South Bend corridor canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11698791 — 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: Chicago–South Bend corridor Context triple: [Michigan City 11th Street station, servesCorridor, Chicago–South Bend corridor]
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A.
Chicago–Indianapolis corridor
The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
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B.
Chicago–Joliet corridor
The Chicago–Joliet corridor is a major commuter and freight rail route in northeastern Illinois connecting the city of Chicago with the city of Joliet through multiple suburban communities.
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C.
Chicago–La Grange corridor
The Chicago–La Grange corridor is a key suburban rail route west of Chicago that has long served as a major commuter link between the city and its western suburbs.
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D.
Chicago–Ann Arbor corridor
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
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E.
Chicago–Aurora corridor
The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
- 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: Chicago–South Bend corridor Target entity description: The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
-
A.
Chicago–Indianapolis corridor
The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
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B.
Chicago–Joliet corridor
The Chicago–Joliet corridor is a major commuter and freight rail route in northeastern Illinois connecting the city of Chicago with the city of Joliet through multiple suburban communities.
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C.
Chicago–La Grange corridor
The Chicago–La Grange corridor is a key suburban rail route west of Chicago that has long served as a major commuter link between the city and its western suburbs.
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D.
Chicago–Ann Arbor corridor
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
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E.
Chicago–Aurora corridor
The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
passenger rail corridor
ⓘ
transportation corridor ⓘ |
| connects |
Chicago metropolitan area
NERFINISHED
ⓘ
South Bend, Indiana NERFINISHED ⓘ |
| connectsMetropolitanArea |
Chicago metropolitan area
NERFINISHED
ⓘ
South Bend–Mishawaka metropolitan area NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasDirection | east–west ⓘ |
| hasEndpointCity |
Chicago
NERFINISHED
ⓘ
South Bend NERFINISHED ⓘ |
| hasFunction | linking Chicago with South Bend via intermediate communities ⓘ |
| hasIntermediateCommunities | northwestern Indiana communities ⓘ |
| locatedIn | Midwestern United States ⓘ |
| locatedInState |
Illinois
ⓘ
Indiana NERFINISHED ⓘ |
| partOf |
Chicago transportation network
NERFINISHED
ⓘ
Indiana transportation network NERFINISHED ⓘ |
| passesThroughRegion | northern Indiana ⓘ |
| primaryMode | rail ⓘ |
| serviceType |
passenger rail
ⓘ
regional rail ⓘ |
| terminus |
Chicago, Illinois
NERFINISHED
ⓘ
South Bend, Indiana NERFINISHED ⓘ |
| transportInfrastructureType | rail corridor ⓘ |
| traverses | Northern Indiana counties ⓘ |
| usedBy | regional rail passengers ⓘ |
| usedFor |
commuter travel
ⓘ
intercity travel ⓘ |
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: Chicago–South Bend corridor Description of subject: The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.