Triple
T6696622
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sounder South Line |
E152765
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
MPI MPXpress locomotive
The MPI MPXpress locomotive is a series of modern diesel-electric passenger locomotives built by MotivePower Industries for commuter rail services across North America.
|
E287561
|
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 MPXpress locomotive | Statement: [Sounder South Line, rollingStock, MPI MPXpress locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MPI MPXpress locomotive Context triple: [Sounder South Line, rollingStock, MPI MPXpress 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.
EMD FT locomotive
The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
-
C.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
-
D.
EMD DM30AC locomotives
EMD DM30AC locomotives are dual-mode diesel-electric locomotives built for the Long Island Rail Road, capable of operating in both diesel and third-rail electric modes to serve non-electrified and electrified territory.
-
E.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
- 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 MPXpress locomotive Triple: [Sounder South Line, rollingStock, MPI MPXpress locomotive]
Generated description
The MPI MPXpress locomotive is a series of modern diesel-electric passenger locomotives built by MotivePower Industries for commuter rail services across North America.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MPI MPXpress locomotive Target entity description: The MPI MPXpress locomotive is a series of modern diesel-electric passenger locomotives built by MotivePower Industries for commuter rail services across North America.
-
A.
MPI MP36PH-3C locomotive
chosen
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.
EMD FT locomotive
The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
-
C.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
-
D.
EMD DM30AC locomotives
EMD DM30AC locomotives are dual-mode diesel-electric locomotives built for the Long Island Rail Road, capable of operating in both diesel and third-rail electric modes to serve non-electrified and electrified territory.
-
E.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
- F. None of above.
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_69c6880687b08190805278b504d1c92c |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d0a3a2408190bb7be4613f896bdc |
completed | March 27, 2026, 6:46 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6f7bba1008190a0ea11aabdb3f360 |
completed | March 27, 2026, 9:33 p.m. |
| NEDg | Description generation | batch_69c6f86fb37c8190ba0ed52d998643d6 |
completed | March 27, 2026, 9:36 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6f8d6c9d481908d988984e0aed6bc |
completed | March 27, 2026, 9:38 p.m. |
Created at: March 27, 2026, 2:05 p.m.