GP40PH-2
E253177
The GP40PH-2 is a rebuilt passenger diesel-electric locomotive, derived from the EMD GP40 freight design and equipped with head-end power for commuter rail service.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T2297172 — 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: GP40PH-2 Context triple: [Raritan Valley Line, usesLocomotiveClass, GP40PH-2]
-
A.
GA 400
GA 400 is a major north–south freeway in Georgia that connects downtown Atlanta with its northern suburbs and exurbs.
-
B.
PH-07
PH-07 is the ISO 3166-2 code assigned to the Central Visayas administrative region of the Philippines.
-
C.
NP44
NP44 is a UK postal district within the NP (Newport) postcode area, covering parts of Cwmbran and surrounding locations in South Wales.
-
D.
SR 400
SR 400 is a major north–south highway in Georgia that serves as a key commuter and traffic corridor through the Atlanta metropolitan area.
-
E.
PW4000 series
The PW4000 series is a family of high-bypass turbofan engines developed by Pratt & Whitney for wide-body commercial airliners.
- 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: GP40PH-2 Target entity description: The GP40PH-2 is a rebuilt passenger diesel-electric locomotive, derived from the EMD GP40 freight design and equipped with head-end power for commuter rail service.
-
A.
GA 400
GA 400 is a major north–south freeway in Georgia that connects downtown Atlanta with its northern suburbs and exurbs.
-
B.
PH-07
PH-07 is the ISO 3166-2 code assigned to the Central Visayas administrative region of the Philippines.
-
C.
NP44
NP44 is a UK postal district within the NP (Newport) postcode area, covering parts of Cwmbran and surrounding locations in South Wales.
-
D.
SR 400
SR 400 is a major north–south highway in Georgia that serves as a key commuter and traffic corridor through the Atlanta metropolitan area.
-
E.
PW4000 series
The PW4000 series is a family of high-bypass turbofan engines developed by Pratt & Whitney for wide-body commercial airliners.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
diesel-electric locomotive
ⓘ
passenger locomotive ⓘ rebuilt locomotive ⓘ |
| basedOnDesign | EMD GP40 freight locomotive ⓘ |
| builder |
Electro-Motive Division
ⓘ
Morrison-Knudsen ⓘ |
| countryOfOperation |
United States
ⓘ
linked to:
United States of America
|
| derivedFrom | EMD GP40 ⓘ |
| designedFor | push-pull operation ⓘ |
| hasAbbreviation |
HEP
ⓘ
linked to:
INSPIRE-HEP
|
| hasBodyStyle | hood body ⓘ |
| hasBrakeType | air brakes ⓘ |
| hasCabConfiguration | road switcher ⓘ |
| hasControlType | diesel-electric multiple-unit control ⓘ |
| hasCoupling | AAR knuckle coupler ⓘ |
| hasElectricalSystem | DC traction motors ⓘ |
| hasEngineConfiguration | V16 two-stroke diesel ⓘ |
| hasFeature | head-end power ⓘ |
| hasFuelType | diesel fuel ⓘ |
| hasLocomotiveType | hood unit ⓘ |
| hasManufacturerDesignation | GP40PH-2 ⓘ |
| hasMultipleUnitCapability | yes ⓘ |
| hasOnboardGenerator | head-end power generator ⓘ |
| hasOperatorCab | end cab ⓘ |
| hasOperatorCabConfiguration | single cab ⓘ |
| hasPowerOutput | 3000 hp class ⓘ |
| hasPrimeMover | EMD 645 series ⓘ |
| hasSafetySystems | standard North American cab signals (varies by operator) ⓘ |
| hasServiceMode |
pull mode
ⓘ
push mode ⓘ |
| hasServiceType | mainline commuter ⓘ |
| hasTrainHeating | head-end power ⓘ |
| operatedBy |
MARC
ⓘ
MBTA ⓘ New Jersey Transit ⓘ
linked to:
NJ Transit
|
| powerType | diesel-electric ⓘ |
| primaryUse | commuter rail service ⓘ |
| rebuiltFor | passenger service ⓘ |
| rebuiltFrom |
EMD GP40
ⓘ
EMD GP40TC ⓘ
linked to:
EMD GP40
|
| region | North America ⓘ |
| roleInTrain | road locomotive ⓘ |
| serviceEntry | late 20th century ⓘ |
| trackGauge | standard gauge ⓘ |
| usedFor | suburban commuter trains ⓘ |
| 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: GP40PH-2 Description of subject: The GP40PH-2 is a rebuilt passenger diesel-electric locomotive, derived from the EMD GP40 freight design and equipped with head-end power for commuter rail service.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: GP40PH-2
linked to: GP40PH-2
linked to: GP40PH-2