MPI F40PH-3C
E423675
The MPI F40PH-3C is a modernized, diesel-electric passenger locomotive rebuilt from older F40PH units, featuring upgraded electronics and emissions systems for commuter rail service.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MPI F40PH-3C canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4235541 — 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: MPI F40PH-3C Context triple: [Altamont Corridor Express, usesLocomotive, MPI F40PH-3C]
-
A.
F40PH-2D (rebuilt variants, historically)
The F40PH-2D rebuilt variants are upgraded versions of the classic EMD F40PH diesel-electric passenger locomotives, historically used by the MBTA for commuter rail service around Boston.
-
B.
MPI MP36PH-3C (leased or borrowed units, historically)
The MPI MP36PH-3C is a modern diesel-electric passenger locomotive model that the MBTA has used in the past through short-term leases or borrowing arrangements rather than as part of its core owned fleet.
-
C.
Fujitsu SPARC servers
Fujitsu SPARC servers are enterprise-grade computer systems built around SPARC RISC processors, designed for high reliability, scalability, and performance in mission-critical workloads.
-
D.
GP40PH-2
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.
-
E.
F24
F24 was the pennant number of HMS Maori, a British Tribal-class destroyer that served with distinction in the Royal Navy during World War II.
- 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: MPI F40PH-3C Target entity description: The MPI F40PH-3C is a modernized, diesel-electric passenger locomotive rebuilt from older F40PH units, featuring upgraded electronics and emissions systems for commuter rail service.
-
A.
F40PH-2D (rebuilt variants, historically)
The F40PH-2D rebuilt variants are upgraded versions of the classic EMD F40PH diesel-electric passenger locomotives, historically used by the MBTA for commuter rail service around Boston.
-
B.
MPI MP36PH-3C (leased or borrowed units, historically)
The MPI MP36PH-3C is a modern diesel-electric passenger locomotive model that the MBTA has used in the past through short-term leases or borrowing arrangements rather than as part of its core owned fleet.
-
C.
Fujitsu SPARC servers
Fujitsu SPARC servers are enterprise-grade computer systems built around SPARC RISC processors, designed for high reliability, scalability, and performance in mission-critical workloads.
-
D.
GP40PH-2
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.
-
E.
F24
F24 was the pennant number of HMS Maori, a British Tribal-class destroyer that served with distinction in the Royal Navy during World War II.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
diesel-electric locomotive
ⓘ
passenger locomotive ⓘ rebuilt locomotive ⓘ |
| basedOnDesignOf | EMD F40PH NERFINISHED ⓘ |
| countryOfOperation |
United States of America
ⓘ
surface form:
United States
|
| designedFor | push-pull commuter trains ⓘ |
| designedToComplyWith | stricter emissions standards ⓘ |
| gauge | standard gauge ⓘ |
| hasBodyStyle | cowl unit ⓘ |
| hasBrakes |
air brakes
ⓘ
dynamic brakes ⓘ |
| hasCabType | full-width cowl ⓘ |
| hasConfiguration | B-B ⓘ |
| hasControlStand |
desktop control stand
ⓘ
modernized control stand ⓘ |
| hasElectricalSystem | AC-DC electrical system ⓘ |
| hasEmissionControl |
improved engine tuning for emissions
ⓘ
upgraded exhaust system ⓘ |
| hasFeature |
head-end power
ⓘ
microprocessor controls ⓘ modernized cab equipment ⓘ upgraded electronics ⓘ upgraded emissions systems ⓘ |
| hasFuelType | diesel fuel ⓘ |
| hasHeadEndPower | yes ⓘ |
| hasOperatorCab | single control cab ⓘ |
| hasPrimeMover | EMD 645-series diesel engine NERFINISHED ⓘ |
| hasSafetySystem |
automatic train control (where equipped)
ⓘ
cab signaling (where equipped) ⓘ |
| introducedAs | modernized variant of F40PH ⓘ |
| operator | Caltrain NERFINISHED ⓘ |
| powerType | diesel-electric ⓘ |
| primaryUse | commuter rail service ⓘ |
| rebuilder |
MPI
NERFINISHED
ⓘ
MotivePower Industries NERFINISHED ⓘ |
| rebuiltFrom |
EMD F40PH
NERFINISHED
ⓘ
F40PH NERFINISHED ⓘ |
| serviceRole | road-switcher style passenger locomotive ⓘ |
| serviceType | passenger service ⓘ |
| tractionType | DC traction motors ⓘ |
| usedFor | short- to medium-distance commuter routes ⓘ |
| usedIn | push-pull commuter consists with cab cars ⓘ |
| usedOn | Caltrain commuter rail NERFINISHED ⓘ |
| wheelArrangement | Bo-Bo ⓘ |
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: MPI F40PH-3C Description of subject: The MPI F40PH-3C is a modernized, diesel-electric passenger locomotive rebuilt from older F40PH units, featuring upgraded electronics and emissions systems for commuter rail service.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.