Triple
T11735532
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Siemens Charger locomotives |
E279015
|
entity |
| Predicate | replaces |
P101
|
FINISHED |
| Object |
GE P40DC locomotives
GE P40DC locomotives are diesel-electric passenger locomotives built by General Electric in the early 1990s, primarily used by Amtrak as part of its Genesis series.
|
E946715
|
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: GE P40DC locomotives | Statement: [Amtrak Siemens Charger locomotives, replaces, GE P40DC locomotives]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GE P40DC locomotives Context triple: [Amtrak Siemens Charger locomotives, replaces, GE P40DC locomotives]
-
A.
GE P42DC locomotives
GE P42DC locomotives are diesel-electric passenger locomotives built by General Electric, widely used across North American intercity rail services for their reliability and high-speed capabilities.
-
B.
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.
-
C.
GE U-series locomotives
GE U-series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric from the 1960s onward, known for their high horsepower and widespread use on railroads around the world.
-
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.
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.
- 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: GE P40DC locomotives Triple: [Amtrak Siemens Charger locomotives, replaces, GE P40DC locomotives]
Generated description
GE P40DC locomotives are diesel-electric passenger locomotives built by General Electric in the early 1990s, primarily used by Amtrak as part of its Genesis series.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: GE P40DC locomotives Target entity description: GE P40DC locomotives are diesel-electric passenger locomotives built by General Electric in the early 1990s, primarily used by Amtrak as part of its Genesis series.
-
A.
GE P42DC locomotives
GE P42DC locomotives are diesel-electric passenger locomotives built by General Electric, widely used across North American intercity rail services for their reliability and high-speed capabilities.
-
B.
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.
-
C.
GE U-series locomotives
GE U-series locomotives are a family of diesel-electric freight and passenger locomotives built by General Electric from the 1960s onward, known for their high horsepower and widespread use on railroads around the world.
-
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.
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.
- 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_69d6aaffec6881908bead509e8621742 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d8a4edced48190b7a59dd45921828e |
completed | April 10, 2026, 7:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f0901a6ed481909054ddd581935ac4 |
completed | April 28, 2026, 10:46 a.m. |
| NEDg | Description generation | batch_69f0a7971df48190b51c1d245f4c89d2 |
completed | April 28, 2026, 12:27 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f0d61cf9c4819080590fefc60f7325 |
completed | April 28, 2026, 3:45 p.m. |
Created at: April 8, 2026, 9:41 p.m.