Triple
T17287416
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MPI MP36PH-3C |
E419693
|
entity |
| Predicate | family |
P566
|
FINISHED |
| Object |
MPXpress locomotive family
The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
|
E1262201
|
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: MPXpress locomotive family | Statement: [MPI MP36PH-3C, family, MPXpress locomotive family]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MPXpress locomotive family Context triple: [MPI MP36PH-3C, family, MPXpress locomotive family]
-
A.
GE Dash 7 series locomotives
GE Dash 7 series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric in the late 1970s and 1980s, known for their improved performance and reliability over the earlier Universal Series.
-
B.
EMD SD70 series locomotives
The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
-
C.
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.
-
D.
GE Dash 8 series locomotives
GE Dash 8 series locomotives are a family of four- and six-axle diesel-electric freight and passenger locomotives built by General Electric in the 1980s and 1990s, known for their angular “Dash 8” carbody styling and widespread use by North American railroads.
-
E.
GE Dash 9 series locomotives
GE Dash 9 series locomotives are high-horsepower diesel-electric freight locomotives built by General Electric in the 1990s, widely used by North American railroads for heavy 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: MPXpress locomotive family Triple: [MPI MP36PH-3C, family, MPXpress locomotive family]
Generated description
The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MPXpress locomotive family Target entity description: The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
-
A.
GE Dash 7 series locomotives
GE Dash 7 series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric in the late 1970s and 1980s, known for their improved performance and reliability over the earlier Universal Series.
-
B.
EMD SD70 series locomotives
The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
-
C.
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.
-
D.
GE Dash 8 series locomotives
GE Dash 8 series locomotives are a family of four- and six-axle diesel-electric freight and passenger locomotives built by General Electric in the 1980s and 1990s, known for their angular “Dash 8” carbody styling and widespread use by North American railroads.
-
E.
GE Dash 9 series locomotives
GE Dash 9 series locomotives are high-horsepower diesel-electric freight locomotives built by General Electric in the 1990s, widely used by North American railroads for heavy 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_69d886db32608190a61e18862c5a8af6 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e43780fad88190b82193c8335e2f11 |
completed | April 19, 2026, 2:01 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0180d49ff08190bd73245adfb86760 |
completed | May 11, 2026, 7:10 a.m. |
| NEDg | Description generation | batch_6a018419f5e0819084ad8dcabd03b6e5 |
completed | May 11, 2026, 7:24 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0187c53c088190ab657523e97e2f70 |
completed | May 11, 2026, 7:39 a.m. |
Created at: April 10, 2026, 5:40 a.m.