EMD GP40-2H
E150844
The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
All labels observed (3)
| Label | Occurrences |
|---|---|
| EMD GP40-2 | 2 |
| EMD GP40 family | 1 |
| EMD GP40-2H canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1320822 — 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: EMD GP40-2H Context triple: [Shore Line East, usesLocomotiveModel, EMD GP40-2H]
-
A.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
B.
GG1 electric locomotive
The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
-
C.
DE30AC locomotive
The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
-
D.
PRR K4s
The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
-
E.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
- 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: EMD GP40-2H Target entity description: The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
-
A.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
B.
GG1 electric locomotive
The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
-
C.
DE30AC locomotive
The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
-
D.
PRR K4s
The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
-
E.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
diesel-electric locomotive
ⓘ
passenger locomotive ⓘ rebuilt locomotive ⓘ |
| basedOn |
EMD GP40-2H
self-linksurface differs
ⓘ
surface form:
EMD GP40-2
|
| builderModelFamily |
EMD GP40-2H
self-linksurface differs
ⓘ
surface form:
EMD GP40 family
|
| category |
commuter rail locomotive
ⓘ
rebuilt passenger locomotive ⓘ |
| configuration | hood unit ⓘ |
| controlType | diesel-electric multiple-unit capable ⓘ |
| designedFor |
commuter rail service
ⓘ
passenger service ⓘ |
| gauge | standard gauge ⓘ |
| hasCab | road-switcher cab ⓘ |
| hasEquipment |
passenger-compatible braking equipment
ⓘ
trainline HEP cabling ⓘ |
| hasFeature |
HEP generator
ⓘ
auxiliary power system for passenger cars ⓘ head-end power ⓘ modified electrical system for HEP ⓘ passenger equipment ⓘ rebuild from freight locomotive ⓘ |
| manufacturer | Electro-Motive Division ⓘ |
| origin |
United States of America
ⓘ
surface form:
United States
|
| powerType | diesel-electric ⓘ |
| primeMover | EMD 645-series diesel engine ⓘ |
| role | hauling commuter coaches ⓘ |
| subclassOf |
EMD GP40-2H
self-linksurface differs
ⓘ
surface form:
EMD GP40-2
|
| tractionType | DC traction motors ⓘ |
| usedIn | North American commuter railroads ⓘ |
| wheelArrangement | B-B ⓘ |
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: EMD GP40-2H Description of subject: The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
EMD GP40-2
this entity surface form:
EMD GP40-2
this entity surface form:
EMD GP40 family