Triple
T8367762
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Silver Meteor |
E197376
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | GE P42DC locomotives |
E506923
|
NE FINISHED |
How this triple was built (2 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 P42DC locomotives | Statement: [Amtrak Silver Meteor, usesRollingStock, GE P42DC locomotives]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GE P42DC locomotives Context triple: [Amtrak Silver Meteor, usesRollingStock, GE P42DC locomotives]
-
A.
GE P42DC locomotives
chosen
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.
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.
-
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.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69ca82f56730819080cec5d991c76f4c |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb808e56fc81908b5d37482f29452d |
completed | March 31, 2026, 8:06 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cdc78c0c208190ba590c74512a4043 |
completed | April 2, 2026, 1:34 a.m. |
Created at: March 30, 2026, 6 p.m.