Portage Viaduct
E514734
Portage Viaduct is a historic railroad bridge spanning the Genesee River gorge in Letchworth State Park in western New York.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Portage Viaduct canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3109779 — 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: Portage Viaduct Context triple: [Letchworth State Park, hasStructure, Portage Viaduct]
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A.
Newkirk Viaduct
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
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B.
Beachley Viaduct
Beachley Viaduct is a road bridge in Gloucestershire, England, that carries the M48 motorway across the Beachley peninsula as part of the Severn Bridge crossing between England and Wales.
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C.
Kinzie Street Railroad Bridge
The Kinzie Street Railroad Bridge is a historic, early 20th-century vertical-lift railroad bridge in downtown Chicago, notable as one of the city’s iconic industrial-era river crossings.
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D.
Perrine Bridge
Perrine Bridge is a large steel arch bridge spanning the Snake River Canyon in Twin Falls, Idaho, renowned for its dramatic views and popularity as a BASE jumping site.
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E.
Rosendale Trestle
Rosendale Trestle is a historic 19th-century railroad viaduct in Rosendale, New York, now best known as a restored pedestrian walkway and landmark spanning the Rondout Creek.
- 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: Portage Viaduct Target entity description: Portage Viaduct is a historic railroad bridge spanning the Genesee River gorge in Letchworth State Park in western New York.
-
A.
Newkirk Viaduct
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
-
B.
Beachley Viaduct
Beachley Viaduct is a road bridge in Gloucestershire, England, that carries the M48 motorway across the Beachley peninsula as part of the Severn Bridge crossing between England and Wales.
-
C.
Kinzie Street Railroad Bridge
The Kinzie Street Railroad Bridge is a historic, early 20th-century vertical-lift railroad bridge in downtown Chicago, notable as one of the city’s iconic industrial-era river crossings.
-
D.
Perrine Bridge
Perrine Bridge is a large steel arch bridge spanning the Snake River Canyon in Twin Falls, Idaho, renowned for its dramatic views and popularity as a BASE jumping site.
-
E.
Rosendale Trestle
Rosendale Trestle is a historic 19th-century railroad viaduct in Rosendale, New York, now best known as a restored pedestrian walkway and landmark spanning the Rondout Creek.
- F. None of above. chosen
Statements (30)
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: Portage Viaduct Description of subject: Portage Viaduct is a historic railroad bridge spanning the Genesee River gorge in Letchworth State Park in western New York.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.