Pittsburgh–St. Louis
E248898
Pittsburgh–St. Louis refers to the intercity rail corridor linking Pittsburgh, Pennsylvania, with St. Louis, Missouri, historically used by major Midwestern and Eastern railroads.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pittsburgh–St. Louis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2197228 — 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: Pittsburgh–St. Louis Context triple: [PCC&StL, servedCorridor, Pittsburgh–St. Louis]
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A.
Pittsburgh–Cincinnati
Pittsburgh–Cincinnati refers to the intercity rail corridor linking Pittsburgh, Pennsylvania, and Cincinnati, Ohio, historically used by passenger and freight trains.
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B.
Pittsburgh–Chicago route
The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
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C.
Pittsburgh, Pennsylvania
Pittsburgh, Pennsylvania is a major U.S. city in western Pennsylvania known for its historic steel industry, numerous bridges, and strong educational and technology sectors.
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D.
Cincinnati
Cincinnati is a major city in southwestern Ohio, known for its historic architecture, riverfront location on the Ohio River, and role as a regional economic and cultural center.
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E.
St. Louis metropolitan area
The St. Louis metropolitan area is a bi-state urban region centered on the city of St. Louis, spanning parts of Missouri and Illinois and serving as a major Midwestern hub for culture, education, and industry.
- 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: Pittsburgh–St. Louis Target entity description: Pittsburgh–St. Louis refers to the intercity rail corridor linking Pittsburgh, Pennsylvania, with St. Louis, Missouri, historically used by major Midwestern and Eastern railroads.
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A.
Pittsburgh–Cincinnati
Pittsburgh–Cincinnati refers to the intercity rail corridor linking Pittsburgh, Pennsylvania, and Cincinnati, Ohio, historically used by passenger and freight trains.
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B.
Pittsburgh–Chicago route
The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
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C.
Pittsburgh, Pennsylvania
Pittsburgh, Pennsylvania is a major U.S. city in western Pennsylvania known for its historic steel industry, numerous bridges, and strong educational and technology sectors.
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D.
Cincinnati
Cincinnati is a major city in southwestern Ohio, known for its historic architecture, riverfront location on the Ohio River, and role as a regional economic and cultural center.
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E.
St. Louis metropolitan area
The St. Louis metropolitan area is a bi-state urban region centered on the city of St. Louis, spanning parts of Missouri and Illinois and serving as a major Midwestern hub for culture, education, and industry.
- F. None of above. chosen
Statements (32)
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: Pittsburgh–St. Louis Description of subject: Pittsburgh–St. Louis refers to the intercity rail corridor linking Pittsburgh, Pennsylvania, with St. Louis, Missouri, historically used by major Midwestern and Eastern railroads.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.