Triple
T20921497
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Long Island Rail Road rolling stock |
E515218
|
entity |
| Predicate | includesRollingStockSeries |
P5426
|
FINISHED |
| Object | DM30AC locomotive |
—
|
NE NERFINISHED |
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: DM30AC locomotive | Statement: [Long Island Rail Road rolling stock, includesRollingStockSeries, DM30AC locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: DM30AC locomotive Context triple: [Long Island Rail Road rolling stock, includesRollingStockSeries, DM30AC locomotive]
-
A.
DE30AC locomotive
The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
-
B.
EMD DM30AC locomotives
chosen
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.
-
C.
ALP-45DP locomotive
The ALP-45DP locomotive is a dual-mode (diesel and electric) passenger locomotive used in North America that allows seamless operation between electrified and non-electrified rail lines.
-
D.
ALP-46 electric locomotive
The ALP-46 is a high-horsepower electric locomotive used by NJ Transit for commuter rail service, based on a German-designed platform optimized for push-pull passenger operations.
-
E.
EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b4f9d5ec8190bb2bd27350ed341c |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6f64e56bc81908aa86f2176fcc0db |
completed | April 21, 2026, 4 a.m. |
Created at: April 16, 2026, 12:48 p.m.