Triple
T9148938
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Heartland Flyer |
E219530
|
entity |
| Predicate | locomotiveClass |
P5426
|
FINISHED |
| Object | GE P42DC |
E35287
|
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 | Statement: [Amtrak Heartland Flyer, locomotiveClass, GE P42DC]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GE P42DC Context triple: [Amtrak Heartland Flyer, locomotiveClass, GE P42DC]
-
A.
GE P42DC
chosen
The GE P42DC is a diesel-electric passenger locomotive built by General Electric, widely used by Amtrak across the United States for long-distance and intercity services.
-
B.
GE P40DC
The GE P40DC is a diesel-electric passenger locomotive built by General Electric, commonly used in North American intercity and commuter rail service.
-
C.
GE P32AC-DM
The GE P32AC-DM is a dual-mode diesel-electric locomotive used primarily in the northeastern United States, capable of operating on both diesel power and third-rail electric power for routes that include non-electrified and electrified track segments.
-
D.
GE ES44DC
The GE ES44DC is a high-horsepower, diesel-electric freight locomotive from General Electric’s Evolution Series, designed to meet stricter emissions standards while providing efficient heavy-haul performance for North American railroads.
-
E.
GE ES44AC
The GE ES44AC is a high-horsepower, AC-traction diesel-electric freight locomotive from General Electric’s Evolution Series, widely used by North American railroads for heavy-haul service.
- 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_69ca83e121dc81909912bd66953081c5 |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69cca91a1fd08190a5bb3d9280439b09 |
completed | April 1, 2026, 5:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d04833858081909b616325f0e6f787 |
completed | April 3, 2026, 11:07 p.m. |
Created at: March 30, 2026, 7:20 p.m.