Triple
T9011420
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | GO Transit Milton line |
E215481
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
MPI MP54AC locomotive
The MPI MP54AC locomotive is a modern diesel-electric passenger locomotive built by MotivePower, designed for high-horsepower commuter rail service with AC traction technology.
|
E774253
|
NE FINISHED |
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: MPI MP54AC locomotive | Statement: [GO Transit Milton line, rollingStock, MPI MP54AC locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MPI MP54AC locomotive Context triple: [GO Transit Milton line, rollingStock, MPI MP54AC locomotive]
-
A.
MPI MP36PH-3C locomotive
The MPI MP36PH-3C is a diesel-electric passenger locomotive commonly used in North American commuter rail service for hauling bi-level coach trains.
-
B.
ACS-64 locomotives
ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
-
C.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
-
D.
EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
-
E.
GE AC4400CW locomotives
GE AC4400CW locomotives are heavy-duty, six-axle diesel-electric freight locomotives built by General Electric, widely used in North America for high-horsepower mainline service.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MPI MP54AC locomotive Triple: [GO Transit Milton line, rollingStock, MPI MP54AC locomotive]
Generated description
The MPI MP54AC locomotive is a modern diesel-electric passenger locomotive built by MotivePower, designed for high-horsepower commuter rail service with AC traction technology.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MPI MP54AC locomotive Target entity description: The MPI MP54AC locomotive is a modern diesel-electric passenger locomotive built by MotivePower, designed for high-horsepower commuter rail service with AC traction technology.
-
A.
MPI MP36PH-3C locomotive
The MPI MP36PH-3C is a diesel-electric passenger locomotive commonly used in North American commuter rail service for hauling bi-level coach trains.
-
B.
ACS-64 locomotives
ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
-
C.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
-
D.
EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
-
E.
GE AC4400CW locomotives
GE AC4400CW locomotives are heavy-duty, six-axle diesel-electric freight locomotives built by General Electric, widely used in North America for high-horsepower mainline service.
- F. None of above. chosen
Provenance (5 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_69ca83a2bf088190986ee7a8eb90407d |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc69c1571881908d0b144786b5ee1f |
completed | April 1, 2026, 12:41 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfeb671e488190920fb1780e4ad48d |
completed | April 3, 2026, 4:31 p.m. |
| NEDg | Description generation | batch_69cfedb37584819083038f1498b00886 |
completed | April 3, 2026, 4:41 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cfee063adc8190a1f2bd447f137e56 |
completed | April 3, 2026, 4:42 p.m. |
Created at: March 30, 2026, 7:06 p.m.