Chicago–San Francisco corridor
E721096
The Chicago–San Francisco corridor is a major historic transcontinental rail route linking the Midwestern United States with the Pacific Coast across the Great Plains and the Rocky Mountains.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Chicago–San Francisco corridor canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8255412 — 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–San Francisco corridor Context triple: [Overland Limited, operatedOnCorridor, Chicago–San Francisco corridor]
-
A.
Los Angeles–San Francisco
Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
-
B.
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.
-
C.
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.
-
D.
Chicago–Los Angeles
Chicago–Los Angeles is a major transcontinental rail and travel corridor in the United States connecting the Midwest to the Pacific Coast.
-
E.
Empire Corridor
The Empire Corridor is a major passenger rail route in New York State, running from New York City through the Hudson Valley and up to cities such as Albany and Buffalo.
- 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–San Francisco corridor Target entity description: The Chicago–San Francisco corridor is a major historic transcontinental rail route linking the Midwestern United States with the Pacific Coast across the Great Plains and the Rocky Mountains.
-
A.
Los Angeles–San Francisco
Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
-
B.
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.
-
C.
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.
-
D.
Chicago–Los Angeles
Chicago–Los Angeles is a major transcontinental rail and travel corridor in the United States connecting the Midwest to the Pacific Coast.
-
E.
Empire Corridor
The Empire Corridor is a major passenger rail route in New York State, running from New York City through the Hudson Valley and up to cities such as Albany and Buffalo.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
rail corridor
ⓘ
transcontinental rail route ⓘ transportation corridor ⓘ |
| connectsCity |
Chicago
NERFINISHED
ⓘ
San Francisco NERFINISHED ⓘ |
| connectsRegion |
Midwestern United States
NERFINISHED
ⓘ
Pacific Coast NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossesFeature |
Great Plains
NERFINISHED
ⓘ
Mississippi River NERFINISHED ⓘ Rocky Mountains NERFINISHED ⓘ |
| hasEndpointState |
California
NERFINISHED
ⓘ
Illinois NERFINISHED ⓘ |
| hasMode | rail transport ⓘ |
| hasTerminus |
Chicago
NERFINISHED
ⓘ
San Francisco NERFINISHED ⓘ |
| historicalSignificance | major historic transcontinental rail link between Midwest and Pacific Coast ⓘ |
| locatedInTimeZone |
Central Time Zone
ⓘ
Mountain Time Zone ⓘ Pacific Time Zone ⓘ |
| notableFor | linking Chicago with San Francisco by rail across the continental United States ⓘ |
| partOf | United States rail network NERFINISHED ⓘ |
| traversesRegion |
Great Plains
NERFINISHED
ⓘ
Rocky Mountains NERFINISHED ⓘ |
| usedFor |
freight rail transport
ⓘ
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: Chicago–San Francisco corridor Description of subject: The Chicago–San Francisco corridor is a major historic transcontinental rail route linking the Midwestern United States with the Pacific Coast across the Great Plains and the Rocky Mountains.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.