Amtrak Illinois Zephyr
E662690
The Amtrak Illinois Zephyr is a state-supported passenger train service operating in Illinois, primarily running between Chicago and Quincy with stops at intermediate cities along the route.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Amtrak Illinois Zephyr canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7128537 — 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: Amtrak Illinois Zephyr Context triple: [Naperville station, servedBy, Amtrak Illinois Zephyr]
-
A.
Amtrak Heartland Flyer
The Amtrak Heartland Flyer is a daily passenger train route that operates between Oklahoma City, Oklahoma, and Fort Worth, Texas, providing regional rail service through the Southern Plains.
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B.
Amtrak Lake Shore Limited
Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
-
C.
Amtrak Silver Star
Amtrak Silver Star is a long-distance passenger train operated by Amtrak that runs between New York City and Miami, serving major cities along the U.S. East Coast.
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D.
Amtrak Cardinal
Amtrak Cardinal is a long-distance passenger train operated by Amtrak that runs between New York City and Chicago via Washington, D.C., Charlottesville, and Cincinnati, offering scenic views through the Appalachian Mountains.
-
E.
Amtrak Texas Eagle
Amtrak Texas Eagle is a long-distance passenger train route in the United States that runs between Chicago and San Antonio, with through-cars continuing to Los Angeles via the Sunset Limited.
- 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: Amtrak Illinois Zephyr Target entity description: The Amtrak Illinois Zephyr is a state-supported passenger train service operating in Illinois, primarily running between Chicago and Quincy with stops at intermediate cities along the route.
-
A.
Amtrak Heartland Flyer
The Amtrak Heartland Flyer is a daily passenger train route that operates between Oklahoma City, Oklahoma, and Fort Worth, Texas, providing regional rail service through the Southern Plains.
-
B.
Amtrak Lake Shore Limited
Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
-
C.
Amtrak Silver Star
Amtrak Silver Star is a long-distance passenger train operated by Amtrak that runs between New York City and Miami, serving major cities along the U.S. East Coast.
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D.
Amtrak Cardinal
Amtrak Cardinal is a long-distance passenger train operated by Amtrak that runs between New York City and Chicago via Washington, D.C., Charlottesville, and Cincinnati, offering scenic views through the Appalachian Mountains.
-
E.
Amtrak Texas Eagle
Amtrak Texas Eagle is a long-distance passenger train route in the United States that runs between Chicago and San Antonio, with through-cars continuing to Los Angeles via the Sunset Limited.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf | passenger train service ⓘ |
| brand | Amtrak Midwest NERFINISHED ⓘ |
| category |
Amtrak routes in Illinois
ⓘ
Passenger rail transportation in Illinois ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| endPoint | Quincy station NERFINISHED ⓘ |
| formerOperator | Chicago, Burlington and Quincy Railroad NERFINISHED ⓘ |
| fundingModel | state-supported under PRIIA Section 209 ⓘ |
| introduced | 1971 ⓘ |
| namedAfter | California Zephyr NERFINISHED ⓘ |
| onboardClass | coach ⓘ |
| onboardService | café car ⓘ |
| operator | Amtrak ⓘ |
| ownerOfRollingStock | Amtrak NERFINISHED ⓘ |
| primaryMarket | downstate Illinois to Chicago travel ⓘ |
| railGauge | standard gauge ⓘ |
| railwayLineUsed | BNSF Railway NERFINISHED ⓘ |
| route | Chicago–Quincy NERFINISHED ⓘ |
| serviceFrequency | daily ⓘ |
| serviceStartYear | 1971 ⓘ |
| serviceType |
intercity rail
ⓘ
state-supported route ⓘ |
| sisterService | Carl Sandburg (train) NERFINISHED ⓘ |
| sponsor | Illinois Department of Transportation NERFINISHED ⓘ |
| startPoint | Chicago Union Station NERFINISHED ⓘ |
| stateServed | Illinois NERFINISHED ⓘ |
| stopsAt |
Chicago Union Station
NERFINISHED
ⓘ
Galesburg station NERFINISHED ⓘ Kewanee station NERFINISHED ⓘ Macomb station NERFINISHED ⓘ Mendota station NERFINISHED ⓘ Naperville station NERFINISHED ⓘ Plano station NERFINISHED ⓘ Princeton station NERFINISHED ⓘ Quincy station NERFINISHED ⓘ |
| terminus |
Chicago Union Station
NERFINISHED
ⓘ
Quincy station NERFINISHED ⓘ |
| timeZone | Central Time Zone ⓘ |
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: Amtrak Illinois Zephyr Description of subject: The Amtrak Illinois Zephyr is a state-supported passenger train service operating in Illinois, primarily running between Chicago and Quincy with stops at intermediate cities along the route.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.