Roxbury Subdivision
E1017241
Roxbury Subdivision is a rail line operated by the New England Central Railroad, forming part of its regional freight rail network in New England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Roxbury Subdivision canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13040570 — 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: Roxbury Subdivision Context triple: [New England Central Railroad, hasSubdivision, Roxbury Subdivision]
-
A.
Boston Subdivision
The Boston Subdivision is a major freight and passenger rail corridor in Massachusetts that forms part of the main line between Boston and points west.
-
B.
Weston Subdivision
Weston Subdivision is a key railway corridor in the Greater Toronto Area used by GO Transit and other operators for commuter and freight rail services.
-
C.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
-
D.
Beverly Branch
Beverly Branch is a commuter rail branch line of Metra's Rock Island District serving Chicago's Beverly and Morgan Park neighborhoods.
-
E.
Rumford Branch
Rumford Branch is a rail line in Maine that served as a key route of the Maine Central Railroad, primarily supporting regional freight and paper industry transportation.
- 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: Roxbury Subdivision Target entity description: Roxbury Subdivision is a rail line operated by the New England Central Railroad, forming part of its regional freight rail network in New England.
-
A.
Boston Subdivision
The Boston Subdivision is a major freight and passenger rail corridor in Massachusetts that forms part of the main line between Boston and points west.
-
B.
Weston Subdivision
Weston Subdivision is a key railway corridor in the Greater Toronto Area used by GO Transit and other operators for commuter and freight rail services.
-
C.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
-
D.
Beverly Branch
Beverly Branch is a commuter rail branch line of Metra's Rock Island District serving Chicago's Beverly and Morgan Park neighborhoods.
-
E.
Rumford Branch
Rumford Branch is a rail line in Maine that served as a key route of the Maine Central Railroad, primarily supporting regional freight and paper industry transportation.
- F. None of above. chosen
Statements (10)
| Predicate | Object |
|---|---|
| instanceOf |
rail line
ⓘ
railroad subdivision ⓘ |
| locatedIn |
New England
ⓘ
United States of America ⓘ
surface form:
United States
|
| operator | New England Central Railroad NERFINISHED ⓘ |
| owner | New England Central Railroad NERFINISHED ⓘ |
| partOf | New England Central Railroad network NERFINISHED ⓘ |
| railGauge | standard gauge ⓘ |
| trackType | freight railroad track ⓘ |
| usedFor | freight rail service ⓘ |
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: Roxbury Subdivision Description of subject: Roxbury Subdivision is a rail line operated by the New England Central Railroad, forming part of its regional freight rail network in New England.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.