New York–Chicago main line
E583876
The New York–Chicago main line was a principal intercity rail corridor in the United States that connected the East Coast metropolis of New York City with the Midwestern hub of Chicago.
All labels observed (3)
| Label | Occurrences |
|---|---|
| New York–Chicago main line canonical | 2 |
| New York–Chicago passenger trains | 1 |
| New York–Chicago route | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6314431 — 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: New York–Chicago main line Context triple: [Erie Lackawanna Railway, notableRoute, New York–Chicago main line]
-
A.
Chicago–Buffalo main line
The Chicago–Buffalo main line was a key intercity rail corridor linking Chicago and Buffalo, serving as a major route for passenger and freight traffic across the Midwest and into the Northeast.
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B.
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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C.
Chicago–Omaha main line
The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
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D.
Grande Ceinture line
The Grande Ceinture line is a major orbital railway route encircling Paris, historically used for freight and suburban passenger services to connect the outer suburbs and bypass the city center.
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E.
New York–St. Louis route
The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
- 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: New York–Chicago main line Target entity description: The New York–Chicago main line was a principal intercity rail corridor in the United States that connected the East Coast metropolis of New York City with the Midwestern hub of Chicago.
-
A.
Chicago–Buffalo main line
The Chicago–Buffalo main line was a key intercity rail corridor linking Chicago and Buffalo, serving as a major route for passenger and freight traffic across the Midwest and into the Northeast.
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B.
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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C.
Chicago–Omaha main line
The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
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D.
Grande Ceinture line
The Grande Ceinture line is a major orbital railway route encircling Paris, historically used for freight and suburban passenger services to connect the outer suburbs and bypass the city center.
-
E.
New York–St. Louis route
The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| associatedWith | New York City–Chicago rail travel ⓘ |
| connects |
Chicago
NERFINISHED
ⓘ
New York City NERFINISHED ⓘ |
| corridorType | intercity passenger corridor ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| geographicDirection | east–west ⓘ |
| historicalSignificance | principal rail corridor between New York City and Chicago ⓘ |
| locatedIn |
East Coast of the United States
NERFINISHED
ⓘ
Midwestern United States ⓘ |
| notableFor | linking major economic centers New York City and Chicago ⓘ |
| partOf | United States intercity rail network NERFINISHED ⓘ |
| regionServed |
Midwestern United States
ⓘ
Northeastern United States ⓘ |
| routeType | long-distance rail line ⓘ |
| servedAs | major trunk line between East Coast and Midwest ⓘ |
| servedCity |
Chicago
NERFINISHED
ⓘ
New York City NERFINISHED ⓘ |
| status | historical route ⓘ |
| terminus |
Chicago
NERFINISHED
ⓘ
New York City NERFINISHED ⓘ |
| transportMode | rail ⓘ |
| usedFor |
intercity rail service
ⓘ
passenger rail transport ⓘ |
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: New York–Chicago main line Description of subject: The New York–Chicago main line was a principal intercity rail corridor in the United States that connected the East Coast metropolis of New York City with the Midwestern hub of Chicago.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
New York–Chicago route
subject surface form:
Pennsylvania Railroad K4s class
this entity surface form:
New York–Chicago passenger trains