Triple
T20658990
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | EMD SD40-2 |
E507704
|
entity |
| Predicate | truckType |
P1776
|
FINISHED |
| Object | EMD HT-C |
—
|
NE NERFINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: EMD HT-C | Statement: [EMD SD40-2, truckType, EMD HT-C]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: EMD HT-C Context triple: [EMD SD40-2, truckType, EMD HT-C]
-
A.
EMD E7
The EMD E7 is a streamlined, cab-unit diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and widely used by major U.S. railroads during the early dieselization era.
-
B.
EMD SD50
The EMD SD50 is a six-axle, high-horsepower diesel-electric freight locomotive introduced by Electro-Motive Division in the 1980s as part of its SD-series lineup.
-
C.
EMD E8
The EMD E8 is a streamlined, diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and 1950s, widely used by major North American railroads.
-
D.
EMD SD9
The EMD SD9 is a six-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the 1950s, widely used by North American railroads for heavy freight service.
-
E.
EMD F125
The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
- 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 HT-C Target entity description: The EMD HT-C is a high-adhesion, three-axle locomotive truck design widely used on later-generation EMD freight locomotives for improved traction and ride quality.
-
A.
EMD E7
The EMD E7 is a streamlined, cab-unit diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and widely used by major U.S. railroads during the early dieselization era.
-
B.
EMD SD50
The EMD SD50 is a six-axle, high-horsepower diesel-electric freight locomotive introduced by Electro-Motive Division in the 1980s as part of its SD-series lineup.
-
C.
EMD E8
The EMD E8 is a streamlined, diesel-electric passenger locomotive built by General Motors’ Electro-Motive Division in the late 1940s and 1950s, widely used by major North American railroads.
-
D.
EMD SD9
The EMD SD9 is a six-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the 1950s, widely used by North American railroads for heavy freight service.
-
E.
EMD F125
The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: truckType Context triple: [EMD SD40-2, truckType, EMD HT-C]
-
A.
cargoVehicle
Indicates a relationship where a vehicle is used or designated for transporting cargo or goods.
-
B.
transportUnit
Indicates a relationship where one entity serves as a means or unit for transporting another entity from one place to another.
-
C.
vehicleType
chosen
Indicates the specific kind or category of vehicle associated with an entity (e.g., car, bus, bicycle).
-
D.
typeOfHaulage
Indicates the kind or category of haulage service or transport operation associated with an entity.
-
E.
vehicleLoadingMethod
Indicates the method or process by which a vehicle is loaded with goods, passengers, or other cargo.
- F. None of above.
Provenance (3 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69e0b4bf58c081908e52a4500e03ff83 |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e6b2eefd5c8190a71d4be690a6ae0e |
completed | April 20, 2026, 11:12 p.m. |
| PD | Predicate disambiguation | batch_69e5c0315f5081908098707c6455e56e |
completed | April 20, 2026, 5:57 a.m. |
Created at: April 16, 2026, 11:43 a.m.