Triple
T13515204
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Cardinal |
E322741
|
entity |
| Predicate | usesLocomotiveType |
P1305
|
FINISHED |
| Object | GE P42DC (non-electrified segments) |
E127706
|
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 (non-electrified segments) | Statement: [Amtrak Cardinal, usesLocomotiveType, GE P42DC (non-electrified segments)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GE P42DC (non-electrified segments) Context triple: [Amtrak Cardinal, usesLocomotiveType, GE P42DC (non-electrified segments)]
-
A.
GE P42DC (on non-electrified segments historically)
chosen
The GE P42DC is a diesel-electric passenger locomotive built by General Electric for Amtrak and other operators, widely used across North American intercity rail services.
-
B.
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.
-
C.
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.
-
D.
Ge 4/4 II electric locomotive
The Ge 4/4 II is a class of narrow-gauge electric locomotives used by Swiss alpine railways, known for their reliability and versatility in both passenger and freight service on steep, winding mountain lines.
-
E.
Ge 4/4 III electric locomotive
The Ge 4/4 III is a modern, high-performance narrow-gauge electric locomotive used by the Rhaetian Railway for both passenger and freight services on its Swiss alpine network.
- 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_69d80766a21881909f21a1b7421d3b8a |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbafa0ed508190b2855171b1945e84 |
completed | April 12, 2026, 2:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f75494642881909f33962afe26f427 |
completed | May 3, 2026, 1:58 p.m. |
Created at: April 9, 2026, 9:44 p.m.